I have mine there too. 422" 340. Hyd. roller deal. Lifter bores bushed because nearly all the lifter bores are chamfered in pre-1987 blocks. Going to be Pro Flo 4 injected but he's dynoing with his carb and distributor.
Brian seems to be a stand up guy that will do the right thing if there are any issues. I have another engine for my E-body I want to take there too but gotta finish up two A-bodies first.