RE: Jett engine, yes : which one ?
Noone really recommends the SJ40 anymore.. I had one these engines and absolutely loved it.. Would run a 8.5 x 7.5 on it, and always get over 19 grand on the ground.. Even got lucky and turned a 1:15 with it racing it against Nelsons one weekend in Rockford..
All them Jett engines have impressed me.. Whatever you buy from Dubb will be a great find... Goodluck..