Hello i have a 95 blazer with a 4.3 vortec. it recently got to running bad when i pressed accelerator. cruising was fine but when i pressed gas to go faster it acted as if it were running out of gas but when u released accelerator it would run good again. so i replaced fuel filter, fuel pump, no help at all still the same. i have another blazer identical to this one in the back yard that i use for parts. So then i replaced cap and rotor, took the plugs out and cleaned them up. no help at all. I took the computers and relays out of the other blazer and swaped them out. no help again. I then thought maybe spider assembly so i swaped them out and new nut kit. still no help. Now i started checking the plug that goes on top of injector with a test light. with the key on engine off the red wire is hot all the time even while spinning motor over. i thought it was suppoed to flash while spinning it over. does anybody have a clue as to what the whole problem is or any advise would be greatly appreciated cause ive almost gave up on this and send it to the junker because im pretty mechanicly inclined and usuallt can fix anything but this has me stumped. thanks