BeBop138 Posted June 11, 2010 Report Posted June 11, 2010 I have a HEI dizzy, timing is set at 6-8 degrees advanced, twin Carter-Weber carbs, RJ12C Champion plugs gapped at 50 thou. It runs OK, no missing,good throttle responce---and the plugs are running dark black. It did this also with the stock engine---I thought the modified engine would burn a little cleaner. Any ideas on the problem:confused:...............Lee Quote
MacGyver Posted June 11, 2010 Report Posted June 11, 2010 First thought with that info would be that you're running too rich. Maybe a bit too much fuel coming in from that dual carb setup? Quote
martybose Posted June 11, 2010 Report Posted June 11, 2010 Do you know what fuel pressure you are running? It's only supposed to be a max of 3 lbs. with these carbs ....... Marty Quote
BeBop138 Posted June 11, 2010 Author Report Posted June 11, 2010 Do you know what fuel pressure you are running? It's only supposed to be a max of 3 lbs. with these carbs .......Marty Thanks Marty, I do think were are running a 4 1/2 lbs:eek: Quote
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