The 32/36 is probably a good choice if you don't intend to do any head work and stick with a stock cam.The progressive linkage is a good feature on the street. I run an autolite 2100 (non progressive) with a clifford adaptor w/heat plate and tube headers but the mileage suffers a bit. The tubes are going away to be replaced with Toms cast headers as soon as finances allow.I find the cab noise objectionable on long trips and the cast iron headers reduces the resonance some. On a 230 don't go too big on exhaust pipe diameter either...fats
