I have one in the shop that had been to about 10 shops with a miss. I have done a compression test and all cylinders are good. It misses on 1 an 3. It really acts like a fuel issue instead of fire. I cleaned the carbs and there was a little varnish in all of them but not bad. I am running some seafoam through it now and I hope it clears up. Anyone had a similar problem?

