I have a 430 MEL engine with a 2 barrel inlet and a 2300 2 barrel Holley on top. The engine starts fine and ticks over with no problem and also pumps ok under acceleration but will not run under cruise conditions it is searching and hunting and just a horrible drive, I have cleaned the float chamber and set the float up I have taken the metering block off and cleaned that and blown through the passage ways but has not made any difference, even tried putting the metering block on from a parts only 4 barrel I have, before I go and get a new carb I was wondering if anyone has any idea’s what else to try.
Cheers
Mick