RE: Which Engine for Biplane Build
I just got one of the Magnum 70's for a 40 size pitts for the $129 and it runs really good, I have a Mag 91 too and that one runs great. Magnums need a little more break in than a OS but a little extra break in time is well worth it for the price difference from the OS, and it seems to run just as strong as my OS 70fs I used too have (wish I never sold it DOH who knew I would need it again)
Dauntae