ORIGINAL: Evgeny-arm
And then the math leaves no advantages for NGH.
Hornblende has made crooked throw that would cause the engine to work (and bulky and heavy pump should there).
We get 130$ (price HK (there are more price)) + 40$ (Perry Large Carburetor SuperTigre .45-.61/OPS .60) + 36$ (Perry Regulating Pump Gas & Smoke) + 7$ (Fourmost Gasoline Check Valve) = 213$.
That's just for the money you get a perfectly running engine.
Hi Evgeny, instead you can "remove the regulator needle from pump unit and put a return to tank line just before carb nipple with a T connector" thats all you need to have a great running NGH GT 9.Maybe you would need to play with a little with LSN profile too .