Okay what carb should I go with? I am thinking of one of three, a Holley street avenger 670cfm, a demon jr. 725 cfm or a eddie Thunder 650 cfm all manual choke and vacuum sec. What I have is a 71 340, .030 over TRW forged pistons, J-Heads with big valves and I should be be around 9:2:1 maybe 9:4:1 Comp. with a med. purple cam, don't know specs, hi-po mopar elec. ign., headers, 904 with a shift kit. Also what kind of stall should I have with 3.23 gears, Thanks..