I had a 73 FX Andrew's Bendix carb 14mm Drag specialties open primary belt 2" drag pipes. Bagger trans small engine sprocket and tall drive sprocket. The drinker I got the better it sounded. I rode my bike through the bar and did a burnout... floor tile flying... cleared out the bar for a few... couldn't see $hit lucky I didn't hit the door on the way out. Good time's