Try Trend
http://www.google.com/url?sa=t&rct=j&q=&esrc=s&frm=1&source=web&cd=1&cad=rja&uact=8&sqi=2&ved=0CB4QFjAA&url=http%3A%2F%2Ftrendperform.com%2F&ei=A9NkVN_QN8yYyASs0oH4Dw&usg=AFQjCNGh2NpJ1ifjZxFQ3V8dQWsfidW1Xg&sig2=eqQwi5fwrm6oJ4ZnKYoPrA&bvm=bv.79189006,d.aWw
I'm not sure on pricing but around Motown they are very popular for all the custom engine work going on around here. I think they have on-the-shelf parts for most popular configurations in .050 increments. Plus, they'll build anything you want. Let me know what you find.
