Originally Posted by sonic rx
they claim they are new billets,as for any info on the gruppe-s will not give any which is a bunch of crap.they are selling a product that they will not ,or do not have any info on. not very good buisness if you ask me . it is kind of like selling a car and when the buyer asks what make is it ,and how many miles are on it? you reply um it is a red car with some miles on it. come on gruppe-s what if there is a problem? and we need some specific info on these. this is by far the worst way to sell a product to buyers. boooo to
gruppe-s ,and don't post up another bogus dyno showing what they do . give up specific numbers. they dyno will not give the builder cam specs.
make sure whomever is doing the work to your heads degree's your new cams. they will be able to tell you your max valve lift both intake and exhaust, duration, and overlap.