It all started while stuck in traffic. My FAST EFI-fed, 348-powered, 1960 Corvette stumbled and stalled. Don’t panic, turn the key off, then crank it, and the engine starts, though it has a hard time idling and runs rough for several minutes. So, we’ve got a problem. The initial solution is to slip it into Neutral and keep the rpm above 1,000, a poor solution to say the least.
Modern EFI systems are beyond my technical expertise; I recall thinking the push-button telephone was remarkable. Nevertheless, the EFI screen in the cockpit provides a wealth of helpful information. Back home in my driveway, I let the engine idle (650 rpm) in gear until it reaches the 180-degree “fan-on” temperature. The DeWitts fan kicks in, causing the engine to stall, but…