Hi guys names Cody jus joined and cant wait to get some opinions on this!! Its driving me crazy. Ok I bought a 95 chevy 1500 4.3 vortec v6. about 2 months ago and it was sitting for a while..the guy definately didnt maintain the truck very well. Sense i have had the truck I have done spark plugs and wires, fuel filter, fuel pressure reg, clutch, flywheel and starter, cap and rotor, pvc valve, And a glasspack exhaust 3". The truck will sit there and idle perfect after i start it. When I start it up though it usually blows the pvc elbow right off along with the vac hose near the fuel regulator and then i have to pop hood and reconnect them or it obviously runs like sh**..backfires in intake manifold and exhaust then idles nice lol. It has very little power when accelerating if any and chokes up occasionally when i hit the gas. Took it to mechanic and the guy pretty much told me had no clue..any ideas would b greatly appreciated !! I have spent so much money and none of the stuff i have done really helped this issue.