Monty I am haveing trouble with this new bf , it starts fine idle's then starts to rev higher and higher until it's out of control. I have pressure tested the tank,changed lines,sealed carb and back plate. Could I have gotten a new engine with a bad front seal. Carb is set at 3.75 hsn and 3 lns 1mm open, I only have 2 tanks of fuel though it.

Any thoughts of what might try would be great, not impressed with my first nova at all.

thanks