I am building a 460 for a 55 Ford wagon and setting it up as a tow vehicle. The current state is here.
https://get.google.com/albumarchive/...q6RnRU5H47VMjT

I have only settled on two things for the engine so far; a 4.5 inch crank and a roller cam, probably CompCams K34-422-9.

I have a 9K#, 84 E350 with a 7.3 diesel from an 84 E350. I added a turbo that was intended for a 7.3 Power Stroke. It is on the frame about at the rear of the transmission. Five pounds of boost made a huge difference in hill climbing and soot reduction. Installing that turbo required nothing more than some plumbing. That engine seemed to be just waiting for a turbo.

I have a pair of T3/T4 turbos that were supposed to go on that diesel, but I could not find room on the passenger side. I am going to need to make headers. Turbo headers would be easier to build than long tube. The attitude today seems to be, boost everything. So why not?

I may very well have unknown unknowns, but the primary question I have now is compression ratio. Everything I read seems to say as boost goes up compression ratio must go down. Could 9:1 tolerate any boost at all? How low would it need to go for 10 psi? Does octane make a big difference, I would really like to run it on regular? Would aluminum heads make a difference.

Ray