RE: Next problem... Engine for Tiger Trainer 40
Of the list i would go with the Irvine. How about the Irvine 46. It would have plenty of power and be a little less expensive. I have 2 Irvine 53's. I have not run one yet. This soring my old trainer will have one in it. Then I will try it out. I bought one because noone here or at any of the fields I visited had anything but good comments about them. Good luck and I hope you do well with whatever you choose.
Mark Shuman