Performance Auto Parts

I am about ready to order a stroker kit and new heads for my 340 after a great deal of time saving my money (too many hours driving fuel truck) and looking up suppliers it look like Performance auto part may be a good place to spend my money i see there RPM machine co. is addvertized on this web site any insight would be a lot of help or if some one know of a very good place to buy part on line t:read that info would also help