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Old 07-12-2013, 09:07 PM
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mchell mchell is offline
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did what you are trying to do long ago....

just heads???......be a stretch, unless you're willing to up the compression(waaaaaaaay up).......realistically, you're gonna need heads, cam, exhaust and some gear to achieve your goal with moderate compression.....as well as some good tune....or get some cubes

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71 GTO, 463, KRE 295 cfm heads ported by SD Performance, RPM intake, Qjet, Dougs Headers, Comp cams HR 246/252 ...11 to 1 , 3.55 cogs, 3985lbs.....day three- 11.04 at 120mph ....1.53 60', 6.98 1/8 mile
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Old 07-12-2013, 10:32 PM
Tpower66 Tpower66 is offline
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Quote:
Originally Posted by mchell View Post
did what you are trying to do long ago....

just heads???......be a stretch, unless you're willing to up the compression(waaaaaaaay up).......realistically, you're gonna need heads, cam, exhaust and some gear to achieve your goal with moderate compression.....as well as some good tune....or get some cubes
Which heads, cam and gears do you suggest.

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Old 07-13-2013, 08:26 AM
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mchell mchell is offline
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Originally Posted by Tpower66 View Post
Which heads, cam and gears do you suggest.
.. any iron dport head ported to flow at least 230(240 would be better) at .500 lift, fill the exhaust crossover in the head with aluminum.....compression at 10 to 1(real 10 to one, no guessing)....you will need a healthy cam, in your case I might stick with a 041 clone(crower), 3.90 gear, headers and an x system no smaller than 2.5" .....

don't know squat about those tri-power setups...its gonna need some tune

depending on where your piston is in the hole you may have a ping monster.....devils in the details

beware putting fresh heads on a suspect bottom end as it will likely become a smoker...

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71 GTO, 463, KRE 295 cfm heads ported by SD Performance, RPM intake, Qjet, Dougs Headers, Comp cams HR 246/252 ...11 to 1 , 3.55 cogs, 3985lbs.....day three- 11.04 at 120mph ....1.53 60', 6.98 1/8 mile
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