Well , if you throw the muffler away , and get a cold long reach fireball plug off of brodak ( I just tripped over them , just previous - from the plan wtd. thing in C'fied here )
youll soon know , provided your engines run in right .
Intresting the Cobra 7 , Juno , Bob Hunts derivitives etc , stemed from this . Youll get a vicious circle with a muffler , tho titanium might help .
He mustve known something , my finishes are good for Six Months !
The Talka 7 / Akrobat 7, is a Fox .35 ' development ' a .42 . A bit taller & longer - so it sits a bit further back , helps the C.G. if you had one ? .
He could be being cunning & witholding information . Might be a 11 x 5 T/F , with the ends gone . Trimmed . Tho I think your right & its one of those extra wide things .