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#2
05-25-2017, 01:14 PM
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I wrote the one on the old classicalpontiac website, made it back in the '90s. People have been using it for nearly 20 years now, so I'm pretty sure it is reasonably accurate.
EDIT: Yep, ONE of those calculators has a problem! EDIT #2: I agree with the Butler calculator, I get 8.46:1, which is what I'd expect with that size head.
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'73 T/A (sold). Low budget stock headed 8.3:1 455, 222/242 116lsa .443/.435 cam. FAST Sportsman EFI, 317rwhp/385rwtq on 87 octane. 13.12 @103.2, 1.91 60'. '67 Firebird [sold], ; 11.27 @ 119.61, 7.167 @ 96.07, with UD 280/280 (108LSA/ 109 ICL)solid cam. [1.537, 7.233 @93.61, 11.46 @ 115.4 w/ old UD 288/296 108 hydraulic cam] Feb '05 HPP, home-ported "16" D-ports, dished pistons (pump gas only), 3.42 gears, 275/60 DR's, 750DP, T2, full exhaust Last edited by Lee; 05-25-2017 at 01:22 PM. |
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