I have been starting to practice IMAC have a brand new Q35 What plane might work well with engine for IMAC and can any one tell me the gas oil mix I think it was to be 20 to 1 but I bought this engine along time ago.

The Quadra 35 is a fine sport engine. I have one I am putting in a Byron CAP 21 if I ever finish it. Bought it new in about '84. Hang onto it for a fun fly aiplane.

Unfortunately it's power to weight ratio is not great. You need an airplane that comes in under 13# (I think) in order to get any vertical performance. That would be hard considering the size and power of the engine.

Hope someone more knowledgeable pipes in here for you.

32:1 oil mix is what I ran in my Q's. As for an IMAC I am clueless, these tended to weigh quite abit with that big flywheel. Would go ok in a clipped taylorcraft or decathalon where excessive power isn't needed. Basic IMAC possibilities.