That makes sense Dr, considering the size of the balancer and the dist gear. If though, it was off a tooth, wouldn't it run badly, if at all, set at nine degrees at idle? That's not the case here. It's only at 2500 rpm and up that it all goes to hell. I've checked for vacuum leaks possibly making a too lean of a condition. Or is that even relevant? I keep going back to the vac adv since there is only a problem at acceleration when the advance should be kicking in to match the rpm's. Maybe I'll try replacing it. I'll try that timing method next time I put the light to it Bob. Thanks you guys appreciate the input.
