Ok with my xxx nt i wanna break 60+ mph. I want the fastest engine i can get for 150 or lower. I want a lot of top speed. Thanks

OS 18 TZ around $140 to $150!
http://www.osengines.com/reviews/osm...st-rcnitro.pdf
Now reaching 60 MPH is still going to take some doing but this engine for the money is your best chance. Personally if I want all out top speed I would build an on road car.

o yea...you might wanna be careful cuz you might tear up some drivetrain parts

The tz is your only option and you will need to change your gears to get a higher ratio you need a bigger clutch bell and a smaller spur gear or you will never hit 60

yep and some tires

when your going that fast with balooning tires, they tend to rip up and wipe you out (did it once with my evader)

when running a engine that hot, either beef up the tranny or loosen the slipper.

You can use yokohama geolanders with a good amount of hobby shop glue on the bead to keep them on the tires. The geolanders are bigger than anacondas so it will increase your speed. If you get fresh tires before you put them on put a layer or two of DUCT tape inside the tire to keep the tire from turning into pizza cutters at high speed.

also much simpler mods would be easy and obvious is slam it, as low as possible, and maybe a more aerodynamic body, and cut excess fat (all these probably wont gain as much as motor and gearing but if your like me you squeeze everything out)