Delray...alway stick with bigger

I do recommend if you are going to use the stock head having it machined and using stainless steel 2.02 & 1.6's preferable Manly street flows... these will wake those heads up....I ran a Crane 216 @ .050 dur cam and advanced 8 degrees on top of the 2 ground in ( 10 total) This will act a 540 out of the hole and will run good til 5500.....