Quote:
Originally Posted by Half-Inch Stud
Hmmmm. For those 1/4 mile folks that run best with 38*+ Total Adv; Aside from declaring the Head Combustion chambers as grossly inferior, i wonder if trials on carb emulsion changes, ( atomization changes ) would bring the Total ADV down, perhaps to 27*.
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I have an ECU that controls fuel and spark on my 455, "66" casting Dports, zero mods to ports or chambers, 8.3:1. I have a timing table, in lieu of a vacuum advance or advance weights & springs, and can put the timing anywhere I want at any part of the table. For BEST performance on a chassis dyno, my motor performs best with 37 degrees timing.
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'73 T/A (clone). Low budget stock headed 8.3:1 455, 222/242 116lsa .443/.435 cam. FAST Sportsman EFI, 315rwhp/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
My webpage http://lnlpd.com/home
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