building my heads

I would use the 1.78 Ferrea valves on the intake and use the 67-69 340 style exhaust valves. I wouldn't use a manley valve or a undercut valve as the lift that your using doesn't promote high lift flow and these valves will help get you all the flow at low lifts as possiable, but I would do a backcut on the intake side only as the style of the exhaust valve wont like it. This is how we make the HP that we do, with a similar setup. But this is my opinion.