hey guys i just took my car for a ride after new head install, and it misses bad throught the rpm range. the ony changes were the heads, roller rockers and new plugs for the alumnium heads, its been timed, no computer codes, has 45lbs fuel pressure, and holds 20 inches of vacum, at its 700-800 rough idle.although it did develop a rough idle before when i did the intake swap, but went away when driven. besides the list of mods in my sig. i also have a descreened maf, and a stock computer chip for 350tpiw/auto trans and a emission free painless wiring harness. any help would be greatly appreciated

 

I've heard of others complain of a stumble with an Auto ECU and the T56 swap. Perhaps you could get a manual trans ECU to try it instead...