that is ok,just wait until i tell you to use a std oil pump(lol). i am not sure about the rollers, but if you leave out the 3/8 restrictor at number 5 main and get the correct edge orifice lifter they will meter the oil up the push rod(australian HO's and boss 351s had them so i have been told) but i am not sure.I myself would get some real roller rockers especially at 7000.