small block

[demetrice askew]

i have a chevy 350 small block bored 60 over floating rods double humps heads 1.5 roller rockers 517/543 lift mechanical cam and a holley single plane intake with a 700 holley double pumper its not making no power the motor is in a pontiac grandprix 1986 it had a v6 in it do u all think it could be the rearend it have the v6 backend in it and it one tire but i think it should still burn the tire off of it what do u all think that i have a wrong combanation

[chevy 37]

What gears are you running in the rear? With that set up you should be"burning rubber" with a set up high gears like 2:73 and with low gears of 4:11 you shouldn't have any tire left.

[demetrice askew]

i dont know but its just not making no power what do u thinkit might be

[Dave Severson]

What pistons are you running, and what cc heads? What ignition? The V-6 metric cars all came with anemic rear end gears, usually in the 2.73 range. Is the engine running rich, lean? What do you have the timing set at? Need a bit more information to decipher the problem....

[demetrice askew]

silv-o-lite hypereutectic pistons with two valve relief 64cc heads double humps head hei ingnition and how do i now if my push rods are to short

[erik erikson]

i have a chevy 350 small block bored 60 over floating rods double humps heads 1.5 roller rockers 517/543 lift mechanical cam and a holley single plane intake with a 700 holley double pumper its not making no power the motor is in a pontiac grandprix 1986 it had a v6 in it do u all think it could be the rearend it have the v6 backend in it and it one tire but i think it should still burn the tire off of it what do u all think that i have a wrong combanation

How much stall speed do you have?

[demetrice askew]

cam duration is adv.278/288

[demetrice askew]

stall speed is 3000

[erik erikson]

cam duration is adv.278/288

What is the duration at .050?

[techinspector1]

Pull all the plugs and do a compression test. That's the info I want to know.

[erik erikson]

Pull all the plugs and do a compression test. That's the info I want to know.

I guess I "assumed" he had already done this.You know what they say about people who assume.

[demetrice askew]

i did that one time i think it was 120 or 180

[techinspector1]

Swell.....

[astroracer]

This is just some stuff to think about...
Your cam has about the same specs as a Performer Camshaft. This is intended more towards low to mid-range torque. The single plane intake isn't helping lowend performance matters. Same issue with the double pumper carb. A dual plane intake and vacuum secondary carb would be better matched to your cam. What distributer are you running? I hope it isn't a computer controlled version.
What tranny do you have? The stock 200-4R?
I wouldn't be surprised to see that your rear gears are around 2:56's... A boggy motor will have lots of issues spinnin those tall gears...
Mark

[erik erikson]

This is just some stuff to think about...
Your cam has about the same specs as a Performer Camshaft. This is intended more towards low to mid-range torque. The single plane intake isn't helping lowend performance matters. Same issue with the double pumper carb. A dual plane intake and vacuum secondary carb would be better matched to your cam. What distributer are you running? I hope it isn't a computer controlled version.
What tranny do you have? The stock 200-4R?
I wouldn't be surprised to see that your rear gears are around 2:56's... A boggy motor will have lots of issues spinnin those tall gears...
Mark

"Your cam has about the same specs. as a Perfomer camshaft".
With .517/.543 lift I highly doubt it.Plus it is a mech. stick.