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Original Message
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| back fire at 4500 RPMs |
| By Wayne - 09/13/2005 1:10:10 AM; IP 207.200.116.135 |
| I have a 73, mach 1, with a big block 514inch, carb 870 street avenger, C6 trans, shift kit, 2800 rpm tork converter. When I do a hard lanch in drive, the car back fires at 4500 rpms between the first and second shift, also loses some power into third. Carb Jets are 80 prim. and 84 secondary timming 14 BFT total timming advane 34 BFT. |
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