Hey all. Well im having some issues.
Truck is an 86 chev crew shortbed stepside with 38s so my motors always under load
400 small block chev
.30 over -5 cc dish pistons 268h cam vortechs performer edeljunk 600 one of my problems is i ran my truck down the track and when in 3 rd gear after i let off the throttle (sm465) it backfires from both pipes but only one time....? 2nd is i noticed if i wot in 1 st not granny it blows smoke but i cannot tell if its unburnt fuel or oil burning off. Im thinking the 600 edel is not enough airflow? Running rich as its sucking more fuel then air? Any ideas?