Quote Originally Posted by Kurt751990 View Post
Another thing of note is by using engine braking staying in 4th gear as I press the brake pedal I can come to a stop without any issue what so ever.
The transmission and drivetrain is forcing the engine to maintain rpms, preventing the stall out. It will run hell rich, but as you reach the end of the 'deceleration curve' the surging fuel phenomenon is no longer being exaggerated (well, that's my theory...) I would be tempted to try modifying the ignition tune - smaller plug gap/more advance to improve air-fuel charge burn. The Weber is more sensitive to tuning than the factory Mikuni carb.