Looks like a good street motor. The cam is a bit mild (even the second one). I dug out my not so trusty dyno sim and plugged in these numbers
351 Windsor V8 (.030 over)
357.2 cubic inches
9.50:1 comp ratio
750 cfm carb
Dual Plane manifold
Small headers (1-3/4) with mufflers
GT40p heads (stock flow numbers)
35-418-3 hyd cam
Peak HP: 311 @ 4500 rpm
Peak TQ: 391 @ 3000 rpm
The program can have upto a 10% error (kinda big for me seeing as it can go 30 hp either way, but it's not to bad for basic comparisions
BTW to figure what primary pipe size is needed for your application the formula is;
Primary Pipe Size=RPM x SCID/88200
RPM=Revolutions Per Minute
SCID=Single Cylinder Displacement (CID/8)
Unfortunately I don't have an accurate formula for primary pipe length or collector size, but this is handy none the less.
By the way things look you could go with an even more aggressive cam? A Hyd roller maybe?
I got my cylinder head flow numbers below. You might consider the GT40p heads instead of the ported 351 heads. They feature a more efficent combustion chamber/plug layout which might allow you to run a bit more timing. Especially with the headers installed? Maybe a half point or point more?
10:1 comp HP: 320 @ 4500 TQ: 400 @ 3000
10.5:1 comp HP: 325 @ 4500 TQ: 406 @ 3000
It looks like 10:1 would be the best way to go if you care to try?
The flow numbers for the GT40p heads came from the link below
http://www.fordmuscle.com/archives/2...ds/index.shtml