My carb was leaking after shutting off the engine so i got a rebuild kit from napa took it all apart soaked it blew out all the holes reassembled. Cold starts now require alot of cranking and more than the usual 2 pumps of gas pedal. It runs great after it starts wondering if i missed a check valve. The choke is closed . 170 cubic inch 6 1970 thanks in advance carter carb