jeffk464,

I would have liked to use a 90 in my TF 60 sized Gold Edition P47 but I wanted to have it fully cowled for scale realism. I went with the ST75 because you could get the in-cowl header and muffler and it has been stated over and over again that the ST90 would over-heat with the in-cowl header and muffler. The instructions even show the ST75 so that's how I went. Seems like it will
have more than enough power.

Cheers,
Andy