Rpm this is kevin with the green bodied c10 on 26s I talked to chad he Told me about the camaro oil pan but the way I'm bodied I don't think it'll be a issue but if so I'll be ordering one. A friend was was telling me about the ls6 intake which I may be doing bc I was thinking of machining down the heads an making it a ls6 an changing what's needed to complete the engine.I'm def going to change the water pump to a ls1..... I have a 4in cowl hood so I may be good I guess I'll find out fully on Friday when I got pick it up.