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Just chiming in here. A few months ago I finally found as able to get my Durasparked '84 BII to start and run. Long story short, there was a horrendous vacuum leak when I thought I had it all sealed. I learned a trick from my dad who used to be a mechanical back in the 60' and 70's, I lit a cigar and blew smoke into a vacuum line. I had someone else help by watching because their eyes may pick up something mine doesn't. That worked, I had a huge leak at the base of the carb, there was cigar smoke coming for it. I thought I had the carb on tight enough, read that it required to be 10-12psi on the four bolts, and discovered with my Quinn digital torque adaptor that I had only tightened the bolts down to 4psi. I made the adjustment and now there's no leak!
