- As mentioned, I've done .040 off heads several times, no issues. I will suggest you leave the cork gaskets off the end of the intake and just use a thick bead of RTV. I also use RTV around the water jackets and Indian Head shellac around the intake ports.
- Yes, your adjustable rockers/push rods will work bolt on those heads. It is what you need if going solid lift cam.
- I would suggest some mild home porting while your working over those heads. You could do that at home.
Here is a video that I made of an example of home porting heads with just common house hold tools.
Awesome with videos. Thanks! About the valvetrain, I know I need to use it for my solid cam, what I meant was, could it also be used for a hydralic cam?