RE: Biggest engine on a Big Stik .40
BOSS 351 I have a Magnum .52 in my Global Lucky stik and it goes straight up after a 5 foot take off roll. The climb out is as fast if not faster then a home sick angle. My (un) lucky Stik weighs in at a tad over 6 pounds. The .52 will hang on the pipe for a little while after running at WOT but it idles and transitions great.
Dru.