Great, thank you for the reply. I recently bought a 1990 Jeep Wrangler that had a carb'd 350 Small Block out of a 1986 Corvette. A local shop installed a fuel injection wiring harness from painless and GM TBI from a 1987 C1500. The motor feels to have a mild cam. The cam and heads are of unknown origin. The doner truck had the same motor and a manual transmission. I was unhappy with the throttle response and fuel mileage.

Once I have the fuel map sorted and my BLM's where they should be, I will start troubleshooting the stalling/backfiring issue I am experimenting.

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Kris