Here yah go, [link=http://www.acehardwarehobbies.com/2.2/catalog/default.php?cPath=108_146_147_149_279]RB V 12 [/link] some are 3 port and some are 5 along with standard and plot shafts. ROAR rules are 3 ports athough a local weekend club track my let you run the 5 port without worries. I picked mine up from my local track, they did a better deal than I could find on the net plus it helps the track out.