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Old 03-26-2008, 08:48 PM
01somta 01somta is offline
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Default How much vacumn

I am getting my carb. rebuilt and I would like to get as close as possible right power valve. Here is my cam specs. Crane solid roller 168601 cam .615 .636 246 254 dur @ .050. Any help would be appreciated.

Thanks Dustin
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Old 03-26-2008, 10:03 PM
01somta 01somta is offline
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Here are some motor specs

502 Gen VI 4 bolt main, 9:1 CR
Melling hv oil pump
Crane solid roller p/n 168601 cam .615 .636 246 254 dur @ .050,
crane solid roller lifters
GMPP 12363400 Aluminum Rectangle port heads
GMPP 12361323 1.7 alum Rockers
Edelbrock victor jr 454-R intake
Crank Ext. ballanced, nitriated, crossed drilled gm p/n 10198922
Rods Forged 4340 Steel
Pistons GM P/N 12533507 Forged Aluminum
MSD Pro-Billet Dist.
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Old 05-05-2008, 03:48 PM
malibu795 malibu795 is offline
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that is the LSA of the cam? 106 108 110 112 114*?


wider the LSA the more vacuum the engine till create
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