[Rustys14]

Its your fuel pump. Same thing happened to me and the car was good to go as soon as I replaced the pump. Just chuck a walbro 255 in there so you have room for future upgrades and call it a day.

I did have a eccs relay problem in a separate chassis that caused similar problems (car would die when turning left) but as kingtal0n said its unlikely that's your issue since there are usually other electrical gremlins that go with it.