First I would recommend having a good machine shop do as much of the work as possible.
1. At least Sonic check your block
2. Line bore and deck
3. Have all your internal parts balanced
4. Don't use an engine that has been bored over .030
5. Your clearances are extremely critical for good
oil pressure
6.
Oil restrictors should also be used.
7. Don't over cam your engine (under 600 lift and 240 dur)
8. Use as many new parts as you can afford
9. Use quality valve springs and lifters
Good luck with your build.
Clois