Couple things Ive noticed about this Reedy 121VR.

1. Takes forever to warm up and get to race tune! If your late getting to the driverstand before your race... Definately gotta run some hot laps!

2. The motor has tons of bottom end... I had Rex from RW Mods shim and advanced the piston timing to smooth out the bottom end.. Now she is very drivable when you go to tight, small, 180, driver tracks!

3. Seems like this motor runs best at 250-260, where other motors like RB and GO's you want around 220-230..

4. Cooling head is alittle on the small side... Anyone know or tried to see if a OS Speed head will fit on it?

5. Wakes up after 1+ Gallons! I broke it in with Trinity Monster Horsepower 30% with more oil content for the 1st gallon, and then changed to Byrons 2nd Gen Race Blend and she is a screaming! I run OS P3 plugs usually. but at 9$ a peice.. I may switch to Odonell 97T's at $5 a pop..

Anyone run the 97T's in this motor?

6. I absolutely HATE where the Idle adjustment needle is.. I like motors where the Idle adjustment is between the body of the carb and the cooling head.

7. The 2mm top end need screw is kinda handy. Easier and faster to adjust it on the fly.