1997 Chevy Corvette will not stay running

1997 CHEVROLET CORVETTE
100,000 MILES • V8 • 2WD • AUTOMATIC
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1997 Chevy Corvette mileage: new/rebuilt. I replaced my motor with a 383. It has a new 400 crank, a new computer chip, new comp cam and rocker, and springs. Heads have been slightly polished with new 1.6 exhaust valves. The camshaft at .050 lift is 224 degrees and exhaust 230. Lobe centers are 110 degrees. Lift w/rocker arms intake .477, exhaust is .480. My question is, it will not stay running. I have to pump the gas to keep it going! The guy who built it said it is dead on! I have had it idling for a couple hours but when I try to rev it, it was popping thru the plenum! Got any answers? I called Linginfelter and he said the injector should not need to be replaced. What does this sound like to you?
Jan 4, 2011 at 8:21 PM
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All the components were designed and engineered to work together. Changing things like camshafts and displacement upsets the synchronization of other parts. You are probably experiencing a lean mixture. To verify that; disconnect the vacuum hose to the fuel pressure regulator to increase the fuel pressure. Doing this should richen up the mixture and probably help with the “popping” problem. If this works, you are going to have to figure out a way to richen the mixture up.
Jan 4, 2011 at 10:28 PM