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82 GT · 09-27-2006, 11:50 AM

I just check my vacuum reading again. It's close enough to call 17hg in park and between 14-15hg in gear. A 7.5 valve is what's called for, according to Holley but an 8.5 will give me a slightly earlier opening and later closing.
It won't be until October when I get back to the track but you can bet I'll be back here with the results when I find out! Hopefully, it IS THIS simple...after all this time!

09-27-2006, 11:50 AM	#24
82 GT Import Slayer Join Date: May 1999 Posts: 2,241	Re: Could it be THIS simple? I just check my vacuum reading again. It's close enough to call 17hg in park and between 14-15hg in gear. A 7.5 valve is what's called for, according to Holley but an 8.5 will give me a slightly earlier opening and later closing. It won't be until October when I get back to the track but you can bet I'll be back here with the results when I find out! Hopefully, it IS THIS simple...after all this time! __________________ '82 GT 351W (.060)Comp Cams 274* Extreme Energy cam, ported & polished heads w/ 1.94/1.60 valves 10.3:1 flat top pistons,stealth intake, Mallory dizzy,Holley 750dp carb, BBK shorties,Flowmaster exhaust,C-4 with 3700 stall converter, B&M pro shifter,8.8 rear, 4:10's, subframes, electric fan, powermaster alternator, 4 core radiator.