[sixtysevenGTconv]

What does it have for heads? You only mention intake & carb.
Heads orig cast iron. Or aftermarket aluminum hds such as Edlebrock RPM? Note aluminum hds will have peanut (smaller) spark plugs.
Type of ignition? Orig points or electronic?
Does it have correct FE radiator & fan?
Stock manifolds?

 

[sixtysevenGTconv]

You need to list how you wanna use car.

For my factory 67 390 GT 4spd vert, I wanted most original or period correct looking, being a rare car.
My use occasional long drive but mostly local shows.
Had orig 390 rebuilt, did Edlebrock RPM aluminum hds with matching SCJ exhaust exhaust manifolds, mild Comp Cam, because adding Ford's dealer option of Tri-Power had to reasonable. Had it broken in and tuned on dyno. Car still has orig 3 row radiator no cooling issues. Came with front disc brakes & tach.
Did go with 15" style steel wheels, suspension pretty stock. Good enough for my driving.