I have a 351 windsor in my project. It is not easy. I realized that to get the engin low enough and back far enough that I had to hamer the fire wall in just a little in the right places. now the oil pan just misses the cross member and the firewall. This put the engin verry low which I think will inhanse the handleing, once I finish. I fabed the mounts after I had the engin placed where I wanted. The engin is in place, but I'm saving to build it. I've been piddling with this 260z for over two years and it looks like it will be another two years before its ready.