hes getting mad backfiring. were talkin while he was in the cab rev-ing the engine up to about 2k, there were flames lickin out of that baby.... is it possible that a bad valve or spring or lifter could not be closing therefore letting the explosion out of the engine back into the carb?
If backfiring outa the carb.....to lean....carb plugged with crud=rebuild.
If backfiring outa the exhaust.....running waaaay too rich =carb rebuild. Well maybe float stuck, needle and seat bad, but rebuild anyway.
No adjustment for either, sorry.
The compressiong is good just did a check little earlier and the timing was just adjusted by a mechanic. so they should be ok. Do you think it could simply be the cvarb and it not being adjusted right??