Within the last few months i swapped my intake for an eldelbrock (sp?) Performer. Since then it's been running like a POS. I connected a vaccum gauge to set the timing (according to previous CK5 post) and even went as far as pulling the valve cover off to make sure i was relatively close to TDC before resetting the dist. I've done this procedure a few times already and have made some progress but it still runs badly. I've replaced the cap, rotor, and coil. The spark plug wires are fairly new but not the spark plugs. The truck runs well after initial start up but begins to miss and slows to the point of stalling while idling. It also hestitates every time i try to accelorate. Any help would be greatly appreciated.