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swb85 · 03-16-2009, 05:31 PM

Great looking truck BTW.

Mismatched combo, plain & simple. You're probably running around 8.7-9:1 compression (depending on some unknown specifics). While that's not horrible, it's pretty low. Dunno what your budget is, but if you're willing to do all the work you're talking about then why not just fix what's wrong with your combo and bump the compression (head swap) to where it should be for the cam you have? With more compression you'll keep your top end power and gain a bunch of low/mid torque and drivability. Just my $.02.

Just some food for thought: I'm running 10.4:1 compression and a 232/238 cam in my 383. Makes a ton of power, averages 15-17mpg and runs all day on 91 pump gas. LOVE it and drive it every single day.

03-16-2009, 05:31 PM	#14
swb85 On a budget like Fred Sanford Join Date: Oct 2005 Location: Topeka, KS Posts: 2,031	Re: Removing Performance? Need Cam Help... Great looking truck BTW. Mismatched combo, plain & simple. You're probably running around 8.7-9:1 compression (depending on some unknown specifics). While that's not horrible, it's pretty low. Dunno what your budget is, but if you're willing to do all the work you're talking about then why not just fix what's wrong with your combo and bump the compression (head swap) to where it should be for the cam you have? With more compression you'll keep your top end power and gain a bunch of low/mid torque and drivability. Just my $.02. Just some food for thought: I'm running 10.4:1 compression and a 232/238 cam in my 383. Makes a ton of power, averages 15-17mpg and runs all day on 91 pump gas. LOVE it and drive it every single day. __________________ '85 Silverado swb: 383 stroker, 10.5:1, vortec heads, 232/238 roller cam, RPM air gap, performer 750 carb, stainless longtubes, 3" duals/super 44's, T56/4.11 383ci build / exterior refresh thread '98 Camaro z28: 370ci twin turbo 370ci build '01 Tahoe LT 4x4: 5.3, longtubes/ory, magnaflow duals, custom tune....wife's DD Last edited by swb85; 03-16-2009 at 05:38 PM.