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help me pick a cam for a pump gas smallblock race motor
#445265
08/21/09 05:10 PM
08/21/09 05:10 PM
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Joined: Oct 2003
Posts: 614
ont,canada
mopartuner
OP
mopar
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OP
mopar
Joined: Oct 2003
Posts: 614
ont,canada
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I am looking at putting in a solid flat tappet cam(don't want to grind anything)so a roller is out and too much money right now anyway.The motor is a 10.75 to 1 365ci with ported Eddys(275 cfm?)w 1.6 rocker arms.The car is a 65 [Email]cuda@3100[/Email] lbs.The car has a 904 trans w/low 1st gear,3800 converter, and a 410 rear gear.The tires are 10 x 28.I have 2 intakes I can use(performer rpm & Victor 340)The carb is a 750 holley/proform dp. unit.What can I get this thing to run?Cam sugestions?
Last edited by mopartuner; 08/21/09 05:16 PM.
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Re: help me pick a cam for a pump gas smallblock race motor
[Re: mopartuner]
#445266
08/21/09 05:41 PM
08/21/09 05:41 PM
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Joined: Jan 2003
Posts: 11,725
Portage,michigan
B3422W5
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 11,725
Portage,michigan
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My guess is the convertor is gonna flash to low for you to hang any really big numbers up...you are similar to my little brothers car, but he is 200 pounds heavier and a point lower on compression.
Something about 620 lift(with 1.6's) and 258-264 ish would work well, if the convertor flashed about 1000-1200 rpm higher. With that size cam and your current vertor i suspect it will still run 11.30ish, well closer to 11 flat with the right convertor
Last edited by B3422W5; 08/21/09 05:43 PM.
69 Dart GTS A4 Silver All steel, flat factory hood, 3360race weight
418 BPE factory replacement headed stroker, 565 lift solid cam
Best so far, low 10.30’s 1/4
1.41 best 60 foot
6.56 at 104.17
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I would have the cam ground on a 105 to 107 lobe seperation angle and install it two to six degrees advanced on the intake lobe 
Get the lobes that will give you the most lift and be very stable from 4000 RPM to 7000 RPMs, don't shoot for above 7000 RPM HP 
Pump gas motors don't like cams that race gas motors like 
