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Old 12-30-2012, 10:45 AM
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russ467 russ467 is offline
Chief Ponti-yacker
 
Join Date: Nov 2003
Location: Lexinton, SC
Posts: 612
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it wouldnt run 10-15 seconds if the timing were 180 out. I think either your timing is retarded too much, serious vacuum leak. Even though you have tried 2 carbs, I would borrow a KNOWN good carb off of a running vehicle and try it.

__________________
70 Formula

Old engine:
467 HO headed
6.79 1/8th mile @ 101.87 no N20. 1.44 60ft
6.23 1/8th @ 111.83 w/nitrous
1.37 60ft

New Engine
IAII 535
Calvin Hill Eheads
Few test passes made. Tore it up. Just got it fixed.