Have a stock RR HP 383 all stock engine and want to ditch my iron DP manifold but not sure what to get?? DP or SP aluminum manifold ... could someone possibly explain the dif between the 2 and what would be the best for a 69 383 (std bore flat top HP pistons W/ 3.23 rear) no racing , just cruizing the coast line

Last edited by ngpSatellite; 04/16/10 08:43 PM.