we built this a few years ago - Dart 351 block with Eagle stroker kit. ran strong and good. until now. I strongly suspect one of the kids trashed on it; and he also replaced the ignition box with a different unit, anticipating to add nitrous (against my wishes). I know its hard to diagnose without seeing; but how do I proceed?
it misses, stumbles, cant hold a steady idle, and has only middling power. compression is good - 180. the timing makes NO sense: when we built the engine, it had 35 degrees total advance. I dont know the initial timing; likely around 20? right now it needs 50 degrees of initial timing to run somewhat smoothly. Yes, that makes NO sense. we checked that TDC is correct and aligns with the timing marks. I've swapped the original MSD box in there and it still runs poorly. replaced. I don't know what to check next - or why the timing is so wacky. vacuum seems to go up when you accelerate. I know. makes no sense. my buddies in our "garage club" are puzzled.
it misses, stumbles, cant hold a steady idle, and has only middling power. compression is good - 180. the timing makes NO sense: when we built the engine, it had 35 degrees total advance. I dont know the initial timing; likely around 20? right now it needs 50 degrees of initial timing to run somewhat smoothly. Yes, that makes NO sense. we checked that TDC is correct and aligns with the timing marks. I've swapped the original MSD box in there and it still runs poorly. replaced. I don't know what to check next - or why the timing is so wacky. vacuum seems to go up when you accelerate. I know. makes no sense. my buddies in our "garage club" are puzzled.
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