Deve hosts on his
site a scan of a February 1977 Street Rodder article by Pat Granahl
V-8 Juice for Your Stovebolt . In it he describes using a saddle or crossmember mount like
this which I guess has been used 1000s of times. He also details moving the steering box outboard the frame 1 1/2” and using 307 smog motor exhaust manifolds for clearance. That might be better than the front cradle mount.