Ok,,,new update. Put the avenger back on, another new n & s. Installed mechanical fuel pump, hoping to suck through in tank pump. put gauge inline before carb. went to crank engine without electric pump running. gauge reading 3psi. fuel out vent tubes. ?????????? i'm lost now. 2 different carbs, 2 different pumps, floats, n & s's, adjustments. Any ideas???