What about you Chief, yours looks like it's and angled manifold did you make sure your carb was level when testing?
I'm using a 4150 style carb and want to set the fuel bowl levels before I run it. I could block the front of the stand to get the carb pad level before hand, I never thought of it as I was building or I would have made the rear support so it could tilt and have the front swivel adjustable.
I can adjust my rear support in order to make carb level. The engine runs great now and when I start it it's on my slight slopped driveway. I have my stock QJ installed. Do I need to set the float bowl levels? Can you set them up on the bench instead?