This is my 67 F100 it was built for cruising around town and so far has done a best of 32mpg's in town and 34 mpg's highway after 3000 miles of use. I have an isuzu 4bd1t 3.9L diesel engine with compound holset turbos and it will spin to 4500rpm. The truck rides on a 2007 crown vic aluminum front suspension with rack and pinion and 12" disc brakes, the independant rear suspension is from a 1994 lincoln mark 8 and is all aluminum as well with limited slip and 3.27 gears. I am currently running a 700R4 auto but will be swapping it for a built 4l85e from a 2007 duramax powered van using a precision converter and hardened internals along with a gear vendors overdrive and a PCS controller for a total of 8 forward gears. The truck is still a work in progress but is coming together quickly. I estimate power around 450rwhp but will hit the dyno soon to confirm.