Vince, if you tell Dale at Hughes what you're REALLY gonna do with your truck(ie: 90% street a few trips to the track) he can give you usually three choices; normal, lumpy and mostly race. If you run an M-1 find a supplier for a "turtle" to keep the port velocity up. The bigger the cam, the smaller the turtle needed, because you're gonna lose bottom-end with a big cam anyway, and the turtle can't help that.(make sense?) Ported R/T heads can really open up a big inch stroker. Doing all the right things, 600HP isn't out of the question on a street engine, no nitrous, no puffer. Aim for 400, it should almost be as docile as a stock engine, and still scare you. My engine is more better than stock! Idles smoother, I think it's getting better gas mileage(at least 10-15%) accelerates much better, it just "feels" better. The sound thru the Borla exhaust is wonderful too. Deep and mellow, not raspy or harsh at all.(Thanks again Solar R/T!)
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