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Message: <blockquote data-quote="DLo" data-source="post: 341571" data-attributes="member: 10356">I've done a lot of searching and reading, and I'm just trying to tackle one thing at a time. I already printed out the surging idling check list, and will do that soon but I wanted to post up anyway to see if there's anything I'm missing.Basically I have a 94 GT, and my friends and I tried a 306 swap on it. Here's the buildout: Bottom end - Fully machined production block (.030 over), Federal Mogul main bearings(#4125M), production crank, Keith Black Silvolite pistons(10.1 comp w/58cc), Hastings rings, Federal Mogul rod bearings(#8-2600CP) and Federal Mogul cam bearings(#1204M)Edelbrock 60379 Performer HeadsFMS 1.6" roller rockersEdelbrock 3722 Performer CamEdelbrock 3821 IntakeEdelbrock 3845 70mm throttle bodyFMS 24 lb injectorsGranatelli 75mm MAF for 24 lb injectorsBBK cold air intakeFirst off, the car won't idle on it's own once it gets up to temperature. I pulled codes, and found 157 - so I know there's a problem with the MAF. The granatelli MAF came with a harness adapter, it has 4 wires on it, 2 of which got pulled out. I guess it's possible that I've got those flipped around when I tried to plug them back in. Other than that, we've tried hunting for vacuum leaks using starter fluid or propane to see if the idle would change. We've found nothing so far. Could the MAF be a cause of my car not idling? I haven't tried to drive it yet since you have to ride the clutch in order to keep it alive. A lot of people on another forum have told me over and over again to get a tune, but the local tuners all say the car should drive and idle. Would appreciate some input, my car's been down for 2 months and I miss it!</blockquote>