Odd "miss and hit" during acceleration

[Argess]

Funny you should say that as I have just gone through a lot of distributor tuning, however evrything has been working great. So it's not a "design error", merely a small hiccup, the first symptom of which, I've never seen before.

Sorry don't own a Blackberry. Darned weird...the first time I heard it, I thought a rock had flown loose from the tire tread and hit the inner fender. Then it happened 3 or 4 more times....all with the engine accelerating in the middle of it's power band.

Anyway, that symptom went away after I let the car sit for a bit, plus move the vacuum hose around. Then it was fine. Until it warmed up. Then the symptom went to a major bog and backfire out both sidepipes immediately upon giving it gas vs the earlier symptom when it happened after the car had already started to accelerate.

I seem less confused now that the symptom has changed. Whatever I find, I'll make sure to post the answer in case anyone else ever has a similiar problem.

Oh....I finished building the car about 1996. Just finished my 3rd engine build. First time to get it ready for the car, second time: block cracked.....third time: balancer slipped, timing marks were way out, and I set the timing to the marks....broke a piston. I know a fair bit about engines, but obviously not as much as people in the field, or those more nuts than I am about internal combustion....LOL. But I wish I could record those earlier symptoms today.....I've never heard/felt anything like it before. I can imagine a complete ignition failure, but only for a moment (so when it comes back on, the engine hits hard), might be it.