Originally posted by TheRagunCajun
For about $90 you can get a team STS mt12 engine. It's likes mt12 but made by a different company. I have one and it works great.
I bought one too (STS MT12) for my Kids Reflex and I think it is a DOG compared to my Picco and the RB in my Stepsons RFX. How does yours do against the other engines at your track. I'm going to put a thinner head shim in to raise the compression and see if it helps.
Thanks