49 intek fully built runs great revs up fast. Problem when idling the exhaust & head temps are within 20-30 deg after a few revs #1 cyl is 285 & #2 cyl is 480 deg, motor will idle & stall. i found a air leak the first time on #1 removed intake resealed changed jets from 40s to 44s put it back together now #1 is good temp 285 but #2 is now 485deg. i sprayed cleaner around intake no change in rpm or running same with carb gaskets. i know this is not a normal temp slit for a engine but it seems to be no leak on the outside but i know there is one somewere. any ideas?