mellow_utah
Well-Known Member
Hi all, I have a 73 scamp with a 360 from a van, airgap intake, quickfuel carb, headman headers, msd 6al. I have had a stumble issue at low rpm. I had a quickfuell 600 and now a 750, messed with both, new dizzy, messed with timing (I have even taken the vacuum advance off and increased my total timing to compensate) , no matter what I have tried the stumble is still there. The stumble goes away around 1200rpm, having messed multiple times with fuel and timing to no avail I have been brainstorming other possible issues. The other day I drove the car for the first time at night and at an idle my lights are extreamely dim until my rpm rises, I think I have a standard alternator. My question is, could the low output of my alternator at idle have an effect on the MSD box's ability do deliver enough spark causing my stumble? Has anybody had a similar issue?