Distributor Suggestions
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Tuned
Joined: Mar 2004
Posts: 454
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Distributor Suggestions
I need a new dizzy cause mine burned up. No really, it caught fire this morning after a fuel line burst over top of it and the flames melted the cap to the rotor to the base to the dizzy. I think that is the only major thing that was damaged though, so I am thankful.
I have a 400M engine
Comp 265DEH Cam
Edlebrock performer intake w/ AFB 625 carb
2v heads with minor port/polish job.
Badger flattops and heads together make about 9.2:1 CR.
I am thinking of this dizzy...
http://store.summitracing.com/partde...5&autoview=sku
Can someone recommend a better one or tell me is this will be a good choice?
I have a 400M engine
Comp 265DEH Cam
Edlebrock performer intake w/ AFB 625 carb
2v heads with minor port/polish job.
Badger flattops and heads together make about 9.2:1 CR.
I am thinking of this dizzy...
http://store.summitracing.com/partde...5&autoview=sku
Can someone recommend a better one or tell me is this will be a good choice?
Last edited by kc5hwb; Apr 17, 2006 at 07:33 PM.
Postmaster
Joined: Aug 2001
Posts: 4,270
Likes: 5
From: Delaware
I ran the Mallory for a few years. It was OK. Now I have a Procomp. Mine is a TFI model for EFI, but they have several models that fit 335 series and 385 series motors. They are usually priced less than the Mallory. Here is a link.
http://www.procompelectronics.com/
I believe that Tim Meyer sells Procomp.
http://www.procompelectronics.com/
I believe that Tim Meyer sells Procomp.
Posting Legend
Joined: Sep 2001
Posts: 30,255
Likes: 37
The big problem with aftermarket stuff is replacement parts. You can get the OEM stuff anywhere off the shelf but a lot of the other stuff requires a wait overnight or sometimes days depending on how far you are from a warehouse. You can also get OEM type parts tested at the parts store usually for free. The OEM Duraspark system has a start retard system that helps reduce the strain on the starter especially for hot starts.
Thread Starter
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Tuned
Joined: Mar 2004
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Yes, I thought about that, but I want an upgraded dizzy. I had the stock one in here for the last year, and want to upgrade it to match the rest of the truck. Eventually I would like to add the hi-fire box also.
Junior User
Joined: Aug 2005
Posts: 55
Likes: 8
I've talked with a few ppl, and they recommended the MSD system. Below is the one I'm picking up tomorrow.
http://www.msdignition.com/dist_20.htm
http://www.msdignition.com/dist_20.htm
Thread Starter
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Tuned
Joined: Mar 2004
Posts: 454
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MSD is good I know. I have known more people who run Mallory, but I know that MSD is very good also.
Here is one for the M Series motors.
http://store.summitracing.com/partde...5&autoview=sku
Here is one for the M Series motors.
http://store.summitracing.com/partde...5&autoview=sku
Cargo Master
Joined: May 2003
Posts: 2,561
Likes: 1
From: Earth
Originally Posted by kc5hwb
MSD is good I know. I have known more people who run Mallory, but I know that MSD is very good also.
Here is one for the M Series motors.
http://store.summitracing.com/partde...5&autoview=sku
Here is one for the M Series motors.
http://store.summitracing.com/partde...5&autoview=sku
Trending Topics
Posting Legend
Joined: Sep 2001
Posts: 30,255
Likes: 37
Vacuum advance is required for proper part throttle operation where a street truck spends most of it's time. Mechanical advance units without vacuum advance should be used on wide open throttle racing applications only.
Upgrade??? The stock DS-II ignition system will outperform many aftermarket units up to about 5500RPM. The aftermarket units have made some compromises that allow them to operate at higher RPMs for racing.
Are you guys operating your engines at 6000+ RPM a majority of the time or do you just want cosmetic "bling"?
Upgrade??? The stock DS-II ignition system will outperform many aftermarket units up to about 5500RPM. The aftermarket units have made some compromises that allow them to operate at higher RPMs for racing.
Are you guys operating your engines at 6000+ RPM a majority of the time or do you just want cosmetic "bling"?
Last edited by Torque1st; Apr 18, 2006 at 01:03 AM.
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Thread Starter
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Tuned
Joined: Mar 2004
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I don't want that MSD one, because of the mechanical advance.
Are you telling me that the stock dizzy in my 78 351M that was built with 8.0:1 CR and 140HP will out-perform a brand new design Mallory unit? I am not saying you are wrong, but that seems hard to imagine.
Are you telling me that the stock dizzy in my 78 351M that was built with 8.0:1 CR and 140HP will out-perform a brand new design Mallory unit? I am not saying you are wrong, but that seems hard to imagine.
Posting Legend
Joined: Sep 2001
Posts: 30,255
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If the DS-II is worn out, -of course not. The stock DS-II system will outperform the bling units over the normal operating RPM range if it has been rebuilt to OEM specs. The stock system was set up to operate an engine with maximum efficiency and reliability over the normal operating RPM range. The OEM's had warranty claims, emissions requirements, and CAFE among other things to worry about. They did a nice job on the DS-II. You will have to adjust the advance curve on any distributor to work with your new engine specs. The Mallory unit will outperform the DS-II system above ~5500RPM, but then that is not even close to the normal operating RPM for a 351M.
Please don't perceive the advertising hype and shiny bling as making anything better. Just because a design is "new" or a part is used for "racing" does not make it any better for a particular application. Choose your parts wisely... -But if you want bling by all means buy bling! Many "racing" parts would not survive the rigors of a daily driver and they certainly cost a whole lot more, but they are sure purdy...
Please don't perceive the advertising hype and shiny bling as making anything better. Just because a design is "new" or a part is used for "racing" does not make it any better for a particular application. Choose your parts wisely... -But if you want bling by all means buy bling! Many "racing" parts would not survive the rigors of a daily driver and they certainly cost a whole lot more, but they are sure purdy...
Last edited by Torque1st; Apr 18, 2006 at 02:08 AM.
Thread Starter
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Tuned
Joined: Mar 2004
Posts: 454
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Originally Posted by Torque1st
If the DS-II is worn out, -of course not. The stock DS-II system will outperform the bling units over the normal operating RPM range if it has been rebuilt to OEM specs. The stock system was set up to operate an engine with maximum efficiency and reliability over the normal operating RPM range. The OEM's had warranty claims, emissions requirements, and CAFE among other things to worry about. They did a nice job on the DS-II. You will have to adjust the advance curve on any distributor to work with your new engine specs. The Mallory unit will outperform the DS-II system above ~5500RPM, but then that is not even close to the normal operating RPM for a 351M.
Please don't perceive the advertising hype and shiny bling as making anything better. Just because a design is "new" or a part is used for "racing" does not make it any better for a particular application. Choose your parts wisely... -But if you want bling by all means buy bling! Many "racing" parts would not survive the rigors of a daily driver and they certainly cost a whole lot more, but they are sure purdy...
Please don't perceive the advertising hype and shiny bling as making anything better. Just because a design is "new" or a part is used for "racing" does not make it any better for a particular application. Choose your parts wisely... -But if you want bling by all means buy bling! Many "racing" parts would not survive the rigors of a daily driver and they certainly cost a whole lot more, but they are sure purdy...
Originally Posted by danlee
The aftermarket dizzys are easier to adjust the advance curve in both mechanical advance and vacuum advance. Many DSII units will have too much advance built-in for non-EGR operation.
