Trying to finish my first gasser. I'm building a cub type flat bottom plane with a Zenoah 26. The question is do I need to put any left, right or up, down thrust in the plane with these engines. This will be a slow lazy flyer. Thanks

i would put two degrees right hand thrust and 1 degree of down it .this will help on a high lift wing to keep it from climbing at full throttle and make it handle well when on the takeoff run.