speed than i thought, but what do you think would be the cause of mine topping out at 121mph, twice?? i believe the posts i typed on this were on Z32.org, and maybe that's where i was getting my info from. i know it wasn't from here 'cause i didn't really frequent this board till Z32.org went down. possibly just a low compression on a 140K mile engine at the time or what?? some guy on the board told me my wing was prolly the cause, but i don't think that's right....