Quadrajet Problem Solving > Diagnose a Quadrajet carburetor problem

warm idle

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17058263:
ok engine idles fine until it warms up then i get a miss fire. 301 60 over 79 carb 72 jets 44 custom rids. green pp spring .065 main air bleeds 15.32 float level window style  seat .050 down chennel  idle fine until i drive it then out of gear miss fire

Cliff Ruggles:
May not be carburetor related.  Have you tried to isolate the missfire to any particular cylinder?....Cliff

17058263:
i took the idle tubes out and went 0.43 on them . still had a miss  then went 3 turns out so far no miss when hot . what i cant figure out it i used to have the mixture screws at only 2 turns and it would idle fine. it seems like the engine wants lots of idle fuel

17058263:
ok i think i found the problem out the rubber on my harminic balencer is toast notict it is coming out so i gonna get anthere one ans see if it goes a way. and my engine is external balence

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