RC Engineering 440cc/42 LB Injectors. These retail for $88.75 a piece which would run you $710 a set. RC Engineering builds top of the line injectors run on world class race engines. They have been lightly used and i will let the set go for $325. They were cleaned and flowed within .5% a few months back and have one race on them since.

http://www.rceng.com/Saturated-Injec...440-P30C6.aspx