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In case vortec tpi base ever come out, help me pick a cam

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Old 02-15-2001, 10:06 PM
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JJ
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In case vortec tpi base ever come out, help me pick a cam

I figure I'll use these heads since I have them. This will be for my formula. I have the normal bolt ons laying in wait. I will have the vortec tpi base, as&m runners and ported plenum of course. The heads will get screw in rocker studs and spring upgrade. I have a set of 1.6 golds laying around I would like to use since I have them (probably get pushrod holes enlarged as a cheap precaution). That said, I'm looking at compucam 214/220 with .452/.465 lift, I don't want to go to high with the vortec heads and figure this will be fine with the 1.6s. I'll try to squeeze out a vigilante 2800 stall as well, I may try the slp TC also. Any other ideas on a cam ? I've thought about the LT4 hot cam, but .525 is too much for me, maybe the LT4 or ZZ4 and trade my roller rockers for some 1.5s ?

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87 IROC, 350/5 speed. gmpp 350, vortec heads w/some work, XE268, 1.5rr's, 650dp, rpm intake, MSD ing., ect.
89 formula, L98.
Old 02-15-2001, 10:56 PM
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Car: 1990 Pontiac Trans Am
Engine: 355 TPI siamesed runners
Transmission: Tremec T56
Axle/Gears: 12-Bolt 3.73
There is a thread right now on the aftermarket parts board about which cam for Vortec heads, go check it out. Also do a search on this board. "What cam should I use?" shows up very often here.

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