well i have a 1991 camaro rs 305 tbi and the car has problems idleing for about 5 mins then idles fine but when throttleing about 3000 rpm as a guess no tack it doesnt work but it then sputters and backfires then at about 4000 rpm it stops but when decelerating it backfires bad time is dead on and ive been fooling with this for about 2 weeks and its real frusterating ive also got new t.p.s. vacume lines but the guy who had the car before me put a computer from a 1991 chevy s10 in it and left the old ecm in the dash so i removed the s10 ecm and hooked the old one back in
witch fixed the low idle problem but as i said above it takes a bit to idle correctley