Hey Rjudgey
Here are some ferrea part numbers for valves .
F1854p and F1852p
Mitsi 6g72tt 1mm o/s in and ex , slide straight into the Honda with recut seats and lash caps on the exhaust valves.
That's what is residing in my b20a
Ports don't need bugger all, well according to the guy that looked at mine.
He builds BDA escort motors, formula ford etc etc.
10.5:1 cr 290 degree cams 11mm lift with 45dcoes , these are good for 280 at the flywheel @ 8500rpm.
I'm going itbs and stand alone engine management so should see close to 250 at 7500rpm