Vintage Road Racing Association

Steve Chambers of Lockhart Machine shop comes highly recommended with over 35 years experience rebuilding cylinder heads. He knows engines especially motorcycles as he raced dirt bikes for many years and road/drag raced my KZ 1000J for a number of years. He knows how to make HP with proper porting/polishing.Here is his website

http://lockhartmachine.ca/port_and_polish.html