So I’m not real savy on the cams,but from what iv read it’s a good upgrade for HP,what kind of gains would a fella get on a set of Griffin performance cams,and is shorter valve seals all u need to install these cams,and would my 650 need a dyno tune or an auto tune after the install.the reason I’m looking at GPP cams is Mrrpm needs machining and a fuel air tune after.any input appriciated