edelbrock 600 turing issues

[Pro-Tour 95]

Hey new to the site seems this is the place for this problem im having. I've got a 600 edelbrock 1405 that ive been have a problem with, the problem is when the engine gets warm the carb seems to stumble or studder a little when turning left if it gets un settled. it doesnt seem to do to the right just left. This is the things ive done so far set the floats to the factory specs, ive also moves the acc pump from middle to the top hole seemed worse there and moved to the bottom one seems better there. Ant ideas would be appreciated.

[64larkmark]

sounds lean.you can switch the main jets with the primary.or go thinner on the needles.you can change the power piston springs softer to get fuel faster.could be to small for yer application.if its a 350 or bigger id run a 1806.