Quote Originally Posted by 40FordDeluxe View Post
Have you checked the fuel pressure when it is running like garbage? That would help with diagnosing the issue. External pumps are prone to failure due to heat and lack of cooling. How far from the tank is your pump? Leaking/sticking/gummed up injectors could be it too. We had a 91 TPI Vette years ago that was running similar and we found after many hours working on it that the coolant temp sensor was shorted telling the computer the engine was over heating but the gauge showed normal. It ran all sorts of goofy. That car was probably the most finicky TPI car I was ever around.
40Ford you sure have an interesting selection of cars, one for any occasion - sounds like the way to go. I'll take your suggestion and get my wife out here to check fuel pressure when I'm trying to get it to run. It hasn't run good for a few days now - just coughing & sputtering & backfiring and never taking any throttle.