There is a nice proper break-in procedure here John:

http://devestechnet.com/Home/Project1959235#breakin

I hear that Brad Penn 30w Break-In oil is also a good choice. Once you have it properly broke in, put your choice of regular engine oil in.


Deve

1950 Chevy 3100 Deluxe Cab
1950 Chevy 3100 Standard Cab
In the Stovebolt Gallery
The Think Tank
More info and tips at Deve's Technet