Matt Andren,

I am considering using an OS 90 FS which is similar in power to the Saito 82 and a 46 two stroke. If the distance from the firewall to the front of the cowl is in fact 4 3/4" then it should fit. I realize the OS engine weighs a little more but this plane has a lot of wing area. I belive the video of the Toledo Special flying is with the Saito 82 installed - am I correct. Thank you for the help.

Howard