Please Help!!!!!

[The Bull]

i drive a 92 chevrolet blazer. 4.3 Vortec V6, Edelbrock Headers, Flowmasters, Accel Wires and ignition. Hypertech Chip.

My problem is i keep losing power big time. At first it was only when i had a load on battery (ac full on and radio up) but since then it doesnt have to have anything else on. it starts to stall out especially when im idling, or anytime i get off the gas. It dies, but cranks back up immediatley. I still dont know if its electrical or fuel. So far ive replaced battery, alternator, starter, plugs, wires, and the in line fuel filter. Before i drop the gas tank, can anyone offer me help PLEASE!

[Psman32@af]

It might be that you have a leak in ur vacuum. I had the same thing in my 89 towncar, my power went way down and my idle went way up from like 500 RPM to like 1500 RPM. Id say try and check that somehow.

[olds88]

check your iac motor located on the side of the throttle body if it is not proporly working it will cause a stalling condition especaly with the ac on ummm try using a gm code key and if their is a code look it up in a book to find out what it is