You might want to leave the cam 2 to a race engine. That motor was designed for 87 octane. A fresh tank of 87 and a half a can of seafoam might work better for cleaing things out.Just purchased a 86 interstate, the fuel light comes on and it does not run like it suppose to. I know its full of fuel. Filled it with cam 2 to try to clear up a hessitation. Does any one have advise? It would be greatly appriciated.