half throttle stumble help!??

[jasonsnova]

ok guys a few weeks ago i finished the topend swap on my nova wich consisted of afr 195 heads,air gap intake and a voodoo 268 cam, well i put it all together and it runs decent but i now have a half throttle stumble,wierd thing is from a stop to full throttle hard run it seems fine ,it only does it when your cruiseing along at part throttle then step on it easy it stumbbles till i get to wot then it clears out. i didnt have this stumble before, so i pulled a plug and i was ridiculess lean! it had 73/78 jets in it, so at 1st i bumped them to 78/82 ran it for a few min and it still appeared lean so i bumped it again to 82/82, then took it for a ride and i still have it. i have checked the float level,and squiter play and fuel pressure as well with no luck. so guys give me some suggestions!!! i really want to go to the drags soon but need to get this straightened out 1st.........any ideas????