Call Danese or Patrick over at Patrick's in Arizona. That's where I got all the components, including the Fentons, to do my 235. I also put his S/S exhaust system on. The main problem I had was with the carb linkage, and to the gas pedal. I called Patrick, and he walked me through it. They are great to do business with. I'm very please with the whole set up, and the truck sounds radical. He has the heat kit for the manifold, too. It's a breezer to install on the Fentons.