I've got both motors myself. I've had several Werks and 1, I repeat, 1 Reedy 121VR. The Werks wins with gas mileage and RPM, Reedy wins with bottom, ease of tuning, reliability, and longevity. Running the Reedy with a 2058 pipe is a beast! The recommended pipe for the Reedy (2039) gives great bottom but very little top end. Running it with the 2058 was suprisingly impressive. Most of the guys at the track thought I had a modified motor. Run time just short of 10 minutes but you'll certainly be impressed with the ease of tune and consistancy of the Reedy. Good luck!!!