Exhaust Backfiring

Rays69Cuda said

Started with the filter change and crap on the needle and seat. Cleaned it twice. Before I switched carbs. Going to switch back to to the Edelbrock carb. I tore it completely apart and cleaned every part inside and out. But want to make the Demon work. Should put the Edelbrock 750 back on to prove that it is the Demo carb.

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Backfires out the exhaust when cruising in drive and then pushing hard on the gas. Or a dead stop and a little after you get going can't tell you what rpm. It moves too fast. Have a 2800 stall converter in it so it flashes up quickly. 904 trans with the low first gear and $2000 worth of A-1 trans parts in it. Light weight drums. new input and output shafts, with bearings. Timing is all in by 2200 rpm. If my VDO tack is right.