Originally Posted by
Shortbusallstar
Took a break & now so many new companies & products.
I run a OPS Radical 621with a Jp3 & love it, I have no problems keeping up with anything on the track & get 10+ min per tank. The problem is finding the motor again for next season
What gets good run time & has a smooth power band?
Thanks in advance.
short bus all star

nice bro
i would recommend the X7 for truck or p5xlt
and that radical , anything but smooth but very fast

those are very powerful engines , i was very impressed with them when they were popular