[gsharapa]

Stupid question but I assume when you are putting it on 36 total you are running the rpm up passed 2500 or where ever it maxes out prior to putting it on 36 total? With campy gas these days I use to run my 351 around 34 total. If you still are having problems after all above recommended you might have the distributor check or try a different one but those old Ford balancers with the rubber ring especially if the rubber is cracked slipped all the time,,,