Katech did my motor and the upgrades were cam, oil pump, pistons, heads and valve guides. The engine had 6500 mile when rebuilt.
The motor dynode at 640hp. with there 110 cam. Engine has about 8000 miles on it and going great. I used the stock pan with a 10qt tank.
I live in Fairfax with a SLC so I am not to far. I think Allen is a good idea or someone who has built one before.
If you let it drag out it could be years before its done.