I have friend with an outlaw S/A clone engine. It has a 390 carb on it converted to alcohol. I converted it to alcohol a while back and we dynoed it with good results, however on the track they said it has a stumble when getting back in it in the straights. I did not drill the holes behind the welch plug, as it had no stumble reving it up with no load on it. (It has 3 holes behind the plug). Does anyone have a suggestion on what size to go with the holes, and should I drill just the front 2 (closest to the engine). I usualy just drill the front two on the gx200 carbs when I need to fix that stumble. Thanks in advance.
Gx390 on alcohol ??
- Thread starter youngengines
- Start date
- Tags alcohol gx390