Thanks alot Tom ,new question I'll post to the board.Never been around hi po manifolds owner gave me a H pipe from classic,fits up there real nice was surprised,but what are these steel gaskets?no perforated metal gasket?,also got bolts in the package but they are not long enough for these thick steel (gaskets) who somebody school me on the correct set up and maybe a part number from YO or Classic for the proper length bolts every time I try to get something done I got wrong parts ha,car is 69 Charger RT 440/727 thanks for any info I only been around headers thanks