I have a really nice tall Hilborn injection 4 port for a 6-71 or 8-71 supercharger. 3" bores. It has 8 nozzles 61A, barrel valve, all threads are good, shaft is tight, bores and ****erfly's are in great condition. For the $1200 I'll include a new 3 way fuel shut off valve. great for a g***er, SCTA, bonneville, land speed, Altered, F/X, dragster, FED Sold pending payment