Quote:
Originally Posted by ponjohn
What I like on the powell grind is the wide spread between intake and Ex duration.
There is another member on the forumn, cough cough Lee cough, that follows this same strategy.
Did you provide Powell with flow numbers, csa and any ther specs?
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Hey, I just had a cam ground that only had an 8 degree split. Whatever it takes to make the most average power over the desired power band
Relating to this thread more directly, I recently finished up a 455/Speedmaster combo, and it has a 231/245 113lsa 110.5icl, 0.372" lobe lift HR cam.
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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
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