I have a 1968 B body, with a 440 i just finished. It has a Comp Cams XE275Hl .525 in/ex with 231 and 237* at.050.. About 10.50 compression with decent ported heads, street dominator and holley 750 DP and 3.55 gear. The power band i believe is 2000 to 6500 or so. My question is what is the bare minimum stall needed just to get it to idle in gear decently.