Thanks! I think the oil drain back holes should be easy enough looks like they are drilled 3/4" blind now going by pictures. has not been out for 4 years so i forget. It's in the car now should not be an issue drilling and machining the inner stud boss and clearancing for the pushrods. Going to go from my SR heads to 572's anyways and they need new pistons so then you go well I want a hemi so for a few dollars more?? LOL. Have run 9.65 @ 137.5 with the SR heads not looking to go that much faster just because! I may deal with FHO on the heads, intake and rockers for sure. he's only 2 hours away. But $$$$
so thanks again
