Projects 283 build for my 59 Apache. Need direction.

I like what you're doing here, but a few suggestions. Any machine shop can cut down the guides on your heads for greater lift. The first cam you chose is a much better cam than the Summit one. Don't choose a cam based on lift alone. Also, make sure you are going to have enough valve to piston clearance and enough valve spring pressure that you don't start getting valve float at 5000 rpm.

Devin