I just finished installing a 351W in my Backdraft. You use the rear hole. I learned that the hard way. It is very tight getting the engine in. The headers are the most difficult part of the build. I'm having to fabricate the bolt a little bit, C-Clips, grinding, drilling and it helps to cut a little off the end of each pipe before sliding them into the sidepipes. You will probably have to trim a little to make sure the hole around the pipes is far enough away to keep the heat from damaging the paint. John at Anthem Motors has fabbed up a clutch cylinder bracket that helps with the slave cylinder mounting. If anybody has any more tips for us, chime in.
