Phillip from South Africa here again. I see you are also an V8 guy. I read some of your posts in this forum on heads and EFi's. Have you ever seen the new Balanced Cross Ram (BXR) manifolds at www.mustangbxr.com - worth a look if you want to have a multifunction car, eg drags, top-end runs etc. Just change the optional end covers to move power up/down the rpm band.Let me know what you think.
I use to drive a twin turbo 357cid SVO stroker, dual Turbonetics T4's, Trick Flow Twisted Wedge heads, 4-bolt mains, steel crank, custom 6.18" Carillo rods, JE pistons, etc, and all in a Sierra/Sapphire body. Made around 780Hp at 16 PSi boost with Haltech F9a and MSD dizzy with 6BTM spark controller.
Shifted at 6800-7000, red-lined at 7500, but this high really a waste on turbo engine. And, the old shape car did not handle that well at 300+, even with Bilstein suspension.
Let me know if I can give you some additional info on 351 set-ups, if you want to try it out. Have a lot more torque down where you need it for the larger Falcon body, and a 347 cid 302 is maxed out, and you have to rev it to get perfomance....how does a 425 or 445 351 stroker grab you....or even a 377 making around 440hp naturally aspirated, with components you should be able to find in Oz.