I'd love to find out where to find a flat 12 Porsche engine or how to make one. I have a place locally that I could get to make the crankcase & another place that could make a custom crank. You could use a pair of 911 engines for the cylinder sleeves and cylinder heads, but I haven't quite figured out how to get the cams to work right. LOL Well, I mean you could just make some heads & cams but that would be crazy expensive!!! Hehe I'm all about makin it inexpensive. Or you could just use a 911 twin turbo flat 6 and make 650hp and be fine, but that's the easy way out!!!