i did recheck the timing its about 12 -14 degrees advanced the motor seems to like it best there. as or the idle i know its in the carb when i put a little pressure on the throttle linkage the idle will drop down and the idle screw isnt even touching the cam on the linkage also the pass side idle mix screw stopped working so i may have some dirt in there i will at the least have to pull it off and re check it all and clean it out i have a glass fuel filter and you can see a lot of junk in there.
one other question i was checking some pics of timing tabs and found a pick that showed the top of the tab scale was marked before and below zero was marked after Chevy Timing Tab ID? - See Photo
mine is marked a on top and b on the bottom just wondering what the difference is