Re: Throttle body
you can get a twin 58mm t/b setup off a f series, as far as you having more cubes that will help you out but it doesn't nessicerily mean that you need a t/b of that size, i've got a motor that has been built to see over 6500rpm, strokers wern't designed to do those sort of revs, more for low down torque. as i said before the bigger you go with the t/b the more bottom end you will loose, and thats no good on the street.
the setup that i'm running at the moment was originally off a mates inj 351c, and that thing was definetly no slouch. i beleive that you could probley get better divability from the t3's with a 75mm. 82mm would be the biggest i would go for your setup.
std stroke, alloy heads, comp cam, tfs manifold, 75mm t/b, 70mm maf, 30lb inj, adj fuel press reg, twEECer