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#2 |
Registered Member
Join Date: Sep 2002
Location: NYC
Posts: 245
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![]() For a street/strip car leaning to more street. I thought the duration on the Crower was fine. The lift could have been higher. I just looked at the specs for the Comp Magnum and the Comp X-treme. They're about the same as the Crower but with more lift. Unless you're going to bump the duration at .050 up into the 240*/250* range they're all very closely matched. I'd go with the more lift. If you start going higher in dur, say to 240* and up streetability starts to become ann issue. Everything else aslo has start being upgraded. Higher compression, bigger valve springs, stronger pushrods, high stall convertors, headers and exhaust. It's a tuff call because you're right on the egde. Good luck
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1970 Stang Conv: en:Boss351 (balanced/blueprinted) mech cam(240*@.050/.540 lift) Scrw in studs/comp cams rllr rkr Mldn valves 2.19in 1.71ex ported polished cc'd hrdnd ex Keith Black FT pistons(10.25/1) Weiand Excellorator manifold Holley700 DP mech 2nds MSD 6 box and Dis Headers/2 1/2 inch duels tr: modified FMX re:9-inch/3.89 limited slip |
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