1.5 vs 1.6 rockers

My cam is small, the specs are .427/.454 lift and 204*/216* @ 050 and 112 centerline. The rest of the 360 is stock, except I put a 4bbl on it.
Except the air cleaner except the four barrel except the four barrel intake except the cam except the lifters except the headers LOL... Bone stock! LOL....