Thanks Eddie, I called "ALL ABOUT CARTS" , talked to Jim and he told me they install a 4.3 hp - 3600 rpm motor to gain speed. Well because I am a skeptical person I asked for a name of a person who they installed a motor on their cart. Jim gave me a name and phone number of a person who had 2 carts upgraded. I checked to see if the name was legit and he lived in the villages. The gentleman told me they installed a motor in a 1998 Yamaha and was waiting for them to install another motor in his 1999 Yamaha. He told me he was very happy with the new motor and speed increased well over the legal speed limit. I made a appointment for Mon. 4-20-09. Jim called me Sat. 4-18 and said the motor had not arrived and rescheduled for Thur. 4-23. Jim called me Wed. evening and said the motor arrived and Stephen will be there in the morning. Steve arrived at 9:00 am and completed the installation by 10:30 am. I was impressed with the knowledge and skill Steve possessed. He answered all my questions politely and willingly. The cost was exactly as quoted. My cart speed increased by 50%. I also had a speedometer installed by someone else before the motor was installed, so that I could compare the speed. I would recommend "ALL ABOUT CARTS" if you want a honest and professional mechanic work on your cart. Rich P.