I have a set of the first batch of 440 source heads. Yeah, I'm a little slow but health issues prevented me from finishing up the engine I'm working on. Have some crane adjustable rockers to install on them with a roller cam but the intake pushrods won't line up completely on cylinders 1, 2, 7 and 8 as they contact the side of the intake runner. Would the best way to correct this be to grind off the side of the intake runner or to get some offset rocker arms. Anyone else have this problem/experience in correcting this?