06-28-2016, 06:51 AM
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CC Member
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Join Date: Feb 2012
Location: Keller,
TX
Cobra Make, Engine: Lonestar Classics LS427. Self-built 408W, AFR 195 heads, Performer RPM Intake, Quick Fuel 750, 407rwhp, 479rwtq
Posts: 549
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Not Ranked
No Joy....
Increased fuel pump pressure. Increased the secondary jets from 82 to 86. Still starts missing after 4500 rpm. After letting off the throttle when it started missing, it backfired thru the pipe.
I think I'm going to either take the heads off and get them checked, or just take it in and let someone else fix it. Anyone know a good "hotrod" mechanic with a dyno in DFW?
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