Today I recieved my 88 n/a by truck. It drove like a champ off the truck and around in the lot, however it ran out of gas. So went to the gas station and I bought 5 gallons of regular fuel being that it is an n'a regular fuel should be just fine. After putting the fuel in the car it started to run like S#@T. Its running rough like its missing or something and it has no power and when I'am above 3500 rpm's it back fires. I think it's water in the gas but I also want you alls opinion.

 

your fuel pump could have sucked a bunch of crap up from the bottom of the tank. Start by changing you fuel pump/fuel filter and flush the fuel system. Then see what you got.