Found 2 more Kolar factory extended choke tubes for .750 bore only. One is a .035 choke, the other is .015 choke. These are both extended, knurled ends, not slotted for choke tube wrench, factory original, marked with the 750 and choke designation on extened portion of tube. Very good condition, .035 looks new, $35.00 each, or $65.00 for the pair, incl. shipping to lower 48. E-mail at above if interested........Thanks,Rob G.