well they dont do the md321h rotated so i could go for fabricating it mysekf if not then i have got to go for a v3/4 manifold an i got to upgrade my ecu as need to lose the maf sensor, i not sure what runnig api said it is a good 350 but to be honest who knows but on 28th october im with essex scoobies on the rollers so will see, its only £30 for 2 runs you should go