Originally Posted by BitbyStreetRacin
Do you have an A/F guage? I dont think flooring it at 4k when the fuel shuts off is a good idea either. So it went from running very very rich and now to no fuel after 4k? Get more specific with that problem.
I really hope you meen a wideband oxygen sensor....
My advice, let the car sit until you can convert to obd1 & have it tuned properly ...