Modifications were the oil filter,pressure guage, and went up to a 19 tooth gear sprocket,low pipes instead of the high ones and changed the tank color. West Coast Competition model made in January 1969. Engine rebuild just completed, also a Thanks to Dave at Classic Cycles LTD Baptistown, NJ (www.classiccyclesltd.com
). ***the pressure guage works great,was inexpensive,easy install and eliminates any guessing or malfunction of the original light.