Thread: breaking up at 5000rpm
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Old 02-03-2005, 04:12 AM
Wade Chamberlain Wade Chamberlain is offline
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Join Date: Jun 2000
Location: Warrenton, VA
Cobra Make, Engine: FFR2229K, Vortech-blown 306 (446rwhp, 442 rwtq)
Posts: 236
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get it on a chassis dyno asap. If you're running an FMU, I'd bet you have WAAAYYYYYY too much fuel up top. I had the same problem w/ 30# injectors and FMU. It completely went away when I switched to 42's and scrapped the FMU.

BTW, if you ARE running an FMU, has it been recalibrated for the 30# injectors (different disk...about $35 from vortech).

I agree w/ the lower plug gap. I wouldn't go quite that far though. I've had good experience w/ .040" using a Crane Hi6TRC ignition, and about .035 w/ stock ignition.
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Wade Chamberlain