The FX 61 is not real impressive unless you run a tuned pipe or ultrathrust muffler, there's a couple of these Phoenix Mustangs at our field they race in warbird races, good deal for $99 , spend the extra bucks on a pipe. Check out the Tower discount codes thread on RCU, these perform decent with a piped 61 and without breaking the bank. Linky
http://www2.towerhobbies.com/cgi-bin...?&I=LXGGM2&P=0