I currently have a stock, out of the box MSD Dizzy with a 6a box and Blaster II Coil, and I would like to recurve the dizzy so that it will romp up faster, but I have no idea how to do this or where to even start, as I have never even seen the inside of a distributor. If y'all could please open class on this subject, that would be appreciated.

Truck specs are listed below. The purpose for the truck is pretty much all hot-rod. Not worried about any normal truck stuff, no pulling or hauling. Just shooting for an all around quick and fast street truck.

71 F-100 Sport Custom Shortbed
390 bored .060" over (402 ci)
4.11 x 3.78 bore/stroke
Holley 750 (3310/4160; dual feed, vacuum sec.)
Edelbrock Performer RPM FE aluminum intake
Edelbrock Performer RPM FE aluminum heads
Comp 292 hydraulic cam (.560 lift/244 duration @.050")
Stock 390 rods reconditioned w/ARP bolts
MSD Pro Billet FE distributor
MSD 6A Ignition Module
MSD Blaster 2 Coil
Autolite spark plugs
MSD 8.5mm wires
Melling HV oil pump w/ARP driveshaft
Hooker Comp headers #6903
2.5" exhaust with x-pipe, side exit before rear wheels
Dove aluminum roller rocker assembly with
billet steel shafts & billet split stands
Crane Vacuum canister
10.6:1 Compression
Rebuilt C-6 with shift kit
2800 Stall
Ford 9" rear with 3.25 gears (open differential)

 

Try this link. There is also an article in the tech section at fordmuscle.com thats pretty thorough.
https://www.ford-trucks.com/lc/lc.ph...ons_index.html

 

If this is going to be just as you say an all hot rod, you might want to consider going full mechanical advance without any vacuum. Some times the vacuum can cause you to keep pulling more advance even when you don't want it and then problems can occur. You can put a limit even on that though. Sounds like a great build. Have you driven it yet?

 

Thanks. And yeah, I've driven it a good bit. It's pretty stout, but could use a little more rear gear and a better matched stall converter. About the vacuum advance... I thought the MSD was already all mechanical. ???

 

Oops my bad, I did not see you had that. I have not looked at the MSD units but if they are like other after market performance distributors they will have a realtively easy ability to adjust your advance as far as total and when it comes in. You should have gotten some info with the dist. There should be a stop of some sort which is adjustable to allow you to get the amount of advance you want total and then spring combinations that will control how fast it gets to max. I'll check MSD site.

 

Ok, hear is a link to an MSD page that gives you the break down of how to do what you want I think.
http://www.msdignition.com/pdf/8350_...4_frm23728.pdf