Dennis,
Thank you for the reply.
My question was more aimed at how the engine handles for CL use, ie. what prop, any fuel draw problems with using the .061 venturi, etc. I plan to use a 7x3 prop and NVX-15 fuel with extra castor. Probably a uniflow tank with no pressure (at least at first).
I have a dozen or so NORVEL engines of various sizes and types but thanks for including the break-in and running information. It's nice to have a review and a second opinion.
As for the .074 size, I fly mostly for fun and will never have the top (or even bottom) PA flyers shaking in their boots, so engine size doesn't matter.
George