Need a good online shop for engine rebuild kits

I'm trying to find a good spot to buy some parts for my 86 Iroc-z 383 stroker. I went to Summit and they seem to be my best bet so far. Anyone have any better places online to shop?

http://www.northernautoparts.com/

http://www.competitionproducts.com/

www.jegs.com

and +1 to northern auto parts. I bought one of their budget 350 kits. I liked it. Used everything but the high volume oil pump. Still dont understand why they dont include the standard pump.