Without. The cyl walls get enough oil as is. Also I would suggest drilling a new 1/16" oiling hole in ALL 5 cam bearings & driving them in so this new smaller hole lines up with the vertical passage from the crank. Then either externally oil the (non mag) heads with a T & a line(s) from the sending unit NPT passage at the top rear of the block like Indy does with BB stuff or drill a large access hole in the pass angled passage in the valley up to the deck/head at the bottom of it just above the main gallery then a smaller hole of the proper dia down inside to plumb it into the main gallery. this'll feed the pass rockers & deadhead at the cam bearing. Plumb a line from the main gallery (T ing from the crossover) across to the drivers angled passage ~halfway up to the deck/head to feed the DR rockers & it'll also dedhead at the cam bearing & you'd restrict both sides to the dia you want for the amount of rocker oiling you require. (.080" maybe)