To mount it that way you will have to cut the bottom off the throttle linkage, same as mounting it sideway's. You could space the carb, but that would mean scooping the hood. That pretty matching air cleaner I bought is not going to work either. Also with the reverse pull it'll put some pretty sharp bends in the throttle cable. I think a Mustang pedal setup that comes out the firewall on the pass. side might work for you, but I've never looked at one. The reg is non-return, it's a big end reg which I didn't need, but price was right. The reg you're looking at will be fine. Might not even need it, just is easier to do everything while I still have the front clip off. Too darn old to crawl around in there and change stuff later.