Hi Brent
Talked to you when I was with Team C Racing when you needed headers for your motor. I am now with Shell Valley they now have a second location in Conn. The motor mount is a new style to accept all the differt motor companations I beleave you would use the back two holes for a small block , the two forward holes are for the big blocks.Bret give me a call Monday and I will know.Call toll free 1-877-221-1970 or e-mail
www.shellvalley@snet.net