318 won't rev past 3000 rpm

Dubob said
Are the weights etc free to move in distributor. They may have seized up from sitting. Also any chance of critters getting in exhaust and plugging it up.

Will double-check the distributor weights as well. Come to think of it, I had checked the initial timing, but not the total timing.

I guess it would be hard to tell for sure about a plugged exhaust, but both exhaust tips seem to have the same amount of pressure coming out.