I got my engine in on my b2 and I had a hard time getting it start. After I got it started it shakes really bad like its out of time or out of balance. It should be balanced right. It has a 85 or 86 cougar engine with the balancer that came on it and a 89 flywheel. So it should be 50 oz. imbalance. I've pulled the distributor about 20 times in two days checking and double checking that it I have in right. It doesn't backfire or pop at all. It will hardly run long enough with the vacuum advance unhooked and plugged to check the timing, but it will run with it hooked up and its reading 10* at idle.
I can't advance it anymore than that because it up against the thermostat housing. I need some more ideas.