hey gang, i just recently bought an 85 xlt 351w 4bbl. it has some exhaust issues i guess. # 1 it has hard start up issues in the morning when cold...starts then dies starts then dies ...i have to keep rpm at about 2k or 3k just to warm it up.# 2 when i try to accelerate it sputters and might stall if i don't get of the throttle then i have to get back on to keep going. if i mash on the throttle it will just clonk out...maybe getting too much fuel?? it bog's down real bad. #3 whebn i'm just driving at higher speeds when i let off the throttle it crackles and pops the whole way down the rpm range. if i'm going a steady pace and mash on the throttle then let off really quick it sounds like a damn shotgun went off in my back seat. just this morning while driving to work it happened and blew my recently installed cat back exhaust apart, split the muffler down the seam. what the heck is going on here? carb, problem. give me some advise, who should i take it to to diagnose? :chili: <---this guy is awesome!