I have a '78 seville with an EFI 350 V8 that sat for about 6 years. it ran at first, but the fuel was varnished so it ran rough. I replaced all 8 injectors, the fuel pump, fuel filter, spark plugs, and replaced the old gas with new 91 octain. after that it would not start. it would just flood out the car and fill the oil with gas. i then took it to a mechanic, who replaced the distributer and attached pulse sensor, the computer, and spark plugs. It ran great while siting in ther shop. i picked it up today to take it to the exhaust shop since it is missing the exhaust system. I drove it about a mile and it started spiting and sputtering. It eventually died and would not restart. i assume it is flooding again though i haven't investigated. Is it possible that the computer is shorting out? Any idea why it died or what i can test to diagnos? Is switching the car to a carburator a resonable option, $ wise? I already have $1000 invested in the EFI system. its a one owner with 84k (mint) so i am willing to spend more to keep it original. Thanks for looking.