Proformer plus cam
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Senior User
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Proformer plus cam
I have my 390 out and would like to add a better cam shaft. I still have the stock non adjustable rockers and hydraulic lifters wich a can't afford to change at this time I also have the stock log manifolds. Has any one used the etdelbrock proformer plus. How does it run and idle. Any better than stock http://m.summitracing.com/parts/edl-2106 I'm worried it may be a little to mild but from what I have heard that's about as big as you can go on stock rockers? Any opinions or suggestions
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I'm not familiar with that specific cam.
However, my truck has what appears to be the factory, stamped rocker arms. The engine also has a rather radical idle cam in it. With that I would expect the rocker arms would not be the limiting factor. Spring rates however could be.
However, my truck has what appears to be the factory, stamped rocker arms. The engine also has a rather radical idle cam in it. With that I would expect the rocker arms would not be the limiting factor. Spring rates however could be.
Postmaster
Joined: Oct 2010
Posts: 4,656
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From: Northern and Southern Cal
If it were me I would wait till you can afford an intake and headers.
No reason to throw a cam in if it can't get the engine to breath.
Those stock exhaust logs are horrible things.
Your rockers are not a problem.
Might wanna replace the springs since you're prolly gonna wing it up in rpm with a new set up. But for normal driving ( lets say to 4500 rpm) without beating it up your springs will work.
Restraint required.
No reason to throw a cam in if it can't get the engine to breath.
Those stock exhaust logs are horrible things.
Your rockers are not a problem.
Might wanna replace the springs since you're prolly gonna wing it up in rpm with a new set up. But for normal driving ( lets say to 4500 rpm) without beating it up your springs will work.
Restraint required.
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I do have a better intake that will be going on the truck wile I have it out and I will be buying new vavle springs headers probly won't happen my exhaust is routed perfectly so it's out of the wat of any drive shafts and it's tucked up in the frame so I don't really whant to mess with it
Fleet Owner
Joined: Dec 2009
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From: NorCal
I'm not familiar with that specific cam.
However, my truck has what appears to be the factory, stamped rocker arms. The engine also has a rather radical idle cam in it. With that I would expect the rocker arms would not be the limiting factor. Spring rates however could be.
However, my truck has what appears to be the factory, stamped rocker arms. The engine also has a rather radical idle cam in it. With that I would expect the rocker arms would not be the limiting factor. Spring rates however could be.
Suited for better low-to mid-range torque.
95401 is outta Santa Rosa, CA.
Postmaster
Joined: Oct 2010
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From: Northern and Southern Cal
I do have a better intake that will be going on the truck wile I have it out and I will be buying new vavle springs headers probly won't happen my exhaust is routed perfectly so it's out of the wat of any drive shafts and it's tucked up in the frame so I don't really whant to mess with it
Then run it and have fun.
That cam may lope a little when it's cold, then smooth out.
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The 2106 is the complementary cam and lifters for the dual plane Edelbrock 2105. Will work with stock valve springs if they're in decent shape. Hydraulic Flat Tappet, Advertised Duration 272/282, Lift .460/.480.
Suited for better low-to mid-range torque.
95401 is outta Santa Rosa, CA.
Suited for better low-to mid-range torque.
95401 is outta Santa Rosa, CA.
Yes 95401 is Santa Rosa the guy at the mechine shop I do business with said that he likes the engine pro cam http://enginepro.com/downloads/newdata/EPG_CamShafts.pdf the bigger one out of the two is the one he uses a lot my two concerns are 1 . That power band is really narrow (2000-4500) 2. What will the power be like after 4500 will it just fall on it's face ?
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Postmaster
Joined: Oct 2010
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From: Northern and Southern Cal
Really, with a mild truck engine with stock exhaust manifolds why do you care after 4500?
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Fleet Owner
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From: NorCal
Torque is the name of the game on the street and offroad. It is what gets thse heavy beasts off the line or up the hill.
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I have had mine in the low 5000s but I really try to keep it below 3800 good shift point on mine is 25-3200 I'm thinking that I will be good with the 2000-4500 rpm range do you think the smaller cam would be better ?
Fleet Owner
Joined: Dec 2009
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From: NorCal
The spec for the 2106 is idle to 5500 RPM. Couple it with a dual plane manifold and the FE will appreciate it.... headers and a 4V carb, of course. I think ya might be overthinking this entire issue.
Alternatively, go for broke with the Performer RPM 7106 if ya think ya need more...
.572''/.572'' Lift
296°/296° Adv. Duration
1500-6500 RPM Range
Definitely pop fora single plane, rockers, and valve springs with .572 i/E lift.
Alternatively, go for broke with the Performer RPM 7106 if ya think ya need more...
.572''/.572'' Lift
296°/296° Adv. Duration
1500-6500 RPM Range
Definitely pop fora single plane, rockers, and valve springs with .572 i/E lift.
Thread Starter
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Senior User
Joined: Mar 2008
Posts: 132
Likes: 0
The spec for the 2106 is idle to 5500 RPM. Couple it with a dual plane manifold and the FE will appreciate it.... headers and a 4V carb, of course. I think ya might be overthinking this entire issue.
Alternatively, go for broke with the Performer RPM 7106 if ya think ya need more...
.572''/.572'' Lift
296°/296° Adv. Duration
1500-6500 RPM Range
Definitely pop fora single plane, rockers, and valve springs with .572 i/E lift.
Alternatively, go for broke with the Performer RPM 7106 if ya think ya need more...
.572''/.572'' Lift
296°/296° Adv. Duration
1500-6500 RPM Range
Definitely pop fora single plane, rockers, and valve springs with .572 i/E lift.
