Do u have a vacuum style petcock ? If so then u would have 2 nipples coming off the petcock. 1 line is for vacumm which is teed into the manifold and side of carb, the other nipple is ur fuel line. Then the very bottom of the carb is a drain hose, and there's one more nipple on the carb that's a over flow that doesn't get hooked to anything. Me personally I hate the vacuum operated petcock and switch to a manual one, and another good cheap upgrade is a clear fuel line so you can see you are getting proper fuel flow.
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Hammer head Single seater know as herbie
under construction
Aluminum fuel tank, aluminum wheels, custom fuel/cargo rack, entire rewire, trail tech vapor, ported big valve head, a12camshaft, 12 gram sliders, straight intake, kirkey wide seat, front end extension. 4 point harness, welded cage. Hammerhead exhaust.
Blade Single Seater Restore
welded cage, engine build, new wiring harness/electric box, spun aluminum fuel tank.
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