Sorry for the delayed response, I work nights. :x
On your jetting, it's hard to say, every combo likes something different. But if I had to make a stab no knowing all your variables, I'd say 80 sqaure would not be a bad starting point.
It also depends on what your trying to accomplish, if speed and ET is all your after, being a tad fat is usually what your looking for, just jet it up till your MPH drops off and then go down 1-2 jets and lock it down.
But if your a bracket racer like me, lean is mean, I think my sons carb is jetted 72-73, no power valves, 50cc secondary accelerator pump.
It's a a failry mild 351W that runs 750's 1/8 low 11's 1/4 and yes it's a frigging ford.
Jetting can be a huge enigma to some folks, but really it's just something that needs to be played with in order to find out EXACTLY what the motor is asking for and what your trying to accomplish.
Gooluck and let us know how it pans out>Cp