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Old 10-12-2012, 03:23 PM
79z28dude 79z28dude is offline
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engine thoughts....

ok so im about to do a new top end on my 383....

heres what i am taking off
factory 76 cc chamber cast iron heads 8.5:1 compression
edelbrock performer intake
600cfm holley (single pumper)

heres what is in the bottom end
4 valve relief dish piston (cast)
comp cams 480 lift 280 duration
steel crank and cast i beam

heres whats going on
062 vortec 3 angle valve job (64 cc chamber) going to approx 9.4:1
i cleaned up the heads and port matched to intake
performer rpm air gap intake
670 street avenger
2 inch poly carb spacer

here is my questions
what kind of gains am i looking at?
could the set up handle 100 shot of nitrous oxide?
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