I had an identical situation with my car once. Turned out to be a bad wiring connection to the HEI. Have 12.5 volts without running and about 6 volts running. Fuel and ignition problems present themselves in very similar ways. Can be hard to differentiate. A fuel pressure gauge, that you can see while driving, is a huge troubleshooting aid. Check the usual stuff, like fuel pickup, etc. Could be a clogged sock in the tank, etc.
|