ok try not to laugh..

first time with new engine so bare with me

bought a 3.3 for a 2.5... it wouldnt go anywhere when i fired it up.. and idles a little on the low side had to adjust throttle on radio to keep it on..
ok...

i took apart tranny since it would wind out and not move... checked the clutch... works great... its a 3shoe aluminum or whatever..
opened tranny.. gears are good.. freind told me to loosen the screws on the gears enough to where the resistance felt less... did that on i guess its the reverse gear... and did it to the 2nd gear.. made sure that black slidy thingy that changes gears was in good shape and working.. it is ..
put it back together...

i then noticed that the pos n neg on the ez start motor were put on backwards.. i then added up thatin fact my motor was working backwords..so i flipped the one way around .. hooked the ez motor how it should be.. and thus thinking now the gears will grab since its now rotating the correctway...
ok!


it now wants to rip out of the hole..the carb is in its most closed position..radio is set to 0..and i tried choking it with gas... and it just seems to wanna go faster...

i turned the alen set screws on both gears in tranny many ... two turns out almost to where they showed a bit... i figured if anything its just gonna engage as soon as i hit the gas...
but not keep it soo acc..
this is obviously a engine prob correct??
i "broke in" the engine in reverse (like a idiot) with two tanks keeping it at 200 degress with a heatgun.. my buddy told me traxxas engine run hot.. and anything below 150 would be taking life away from motor...

brakes wont keep this sucker from takin off thats how acccelerated it is..

please help guys..

thanks
the pic is my truck the day i noticed it wouldnt go anywhere so i took a pic at the park in some white sand haha