Hi Guys, I am new to this site and it's my 1st post.
I have a 49 bus coupe that I am working on getting it road worthy. Here is the story, motor is stock with a new carb , generator , voltage regulator , coil ,plugs , wires , Pertronics Ignitor ignition , electric fuel pump mounted by the tank (Pressure is 7.5 lbs. ), new exaust pipes with a Thrush Cherry Bomb . Timing is at TDC , Carb is set with a vacuum gauge witch reads a pretty steady 19 in. at idle. Engine accelerates strong but as soon as I let of the gas it stumbles at cruise. I have tried all I can think of . I thought fuel pressure might be to high, (manual says 4.5 to 5.5 lbs.. Also my distributor is maxed out against the stops to get TDC, no room for advance. HELP, I'm at my WALL !
Thanks in advance , Butch Record