Hey dickie,
I bought the book "How to rebuild your small block chevy". The book was great and told me everything i needed to know as well as the specs. It should help you a lot. The number is HPB-HP1029, $16.95 from summit racing, 1800-230-3030 or summitracing.com. Great book, i would suggest buying it, if all else fails try your local library.

Good luck