Rick you can try places like

http://www.injectors4u.com/injector_prices.htm

http://www.fiveomotorsport.com/Injector_SetsTPI.asp

http://www.ecklers.com/product.asp?pf%5Fid=40959&dept%5Fid=1762

Or I have sets that come from C5 Corvettes that are 26 lb injectors that would be much cheaper like $150 for a set but the ECM would need to be tuned but I do custom tuning as a business.