Hi,
Before I would swap or buy anything, I would check with the expert (Ralph). That way you can make a educated decision.
He also makes a Carb Adapter (a little thinner than stock) to bring inline the throttle lever with the Throttle Servo Rod, for a straight push-pull action.
You might want to check-out his Battery Ignition System. Much lighter and easy starting than the stock G38 Mag System.

Ralph Cunningham - Owner
1800 Whitehall Dr.
PO Box 636
Williams, AZ
USA
86046

928-635-2455