I wrote this for the MGT a while back. Your MGT should really rip with a LRP engine in there...........
Most important speed tips for MGT
1. Use FOC (forward only conversion)
2. Get lighter tires and wheels
3. Tune the clutch
4. Tune your engine for power
5. Use 30% fuel
6. Experiment with gearing, 17/49 is good start with smaller tires
7. Make sure air filter is clean and flows well
8. Check carb linkage and be sure carb is opening all the way
9. Roll-out the truck on ground (by hand), make sure nothing is dragging
10. Tighten your slipper all the way, then just drive a little smoother
11. Consider a new engine, like the LRP Spec 3
If you do those things, your MGT will pretty much keep up with just about any truck out there.
Secrets to Wheelies and mean hole shots - If you wanna wheelie, check these items:
1. Tune the clutch - this is perhaps the most important thing to do! Use heavier springs - 1.1
2. Make sure the clutch is squeaky clean
3. Check the "Speed tips" above, but you won't need FOC to wheelie
4. Stiffen the rear suspension, heavier shock oil & springs
5. Double check to make sure your wheel hexes aren't stripped out
6. Tune HSN for good power, then perform "pinch test" to make sure low end (LSN) is set for good punch off the line. Pinch test means run engine, do a few high speed passes, then pull truck in and pinch fuel line with your fingers - close to carb. If engine dies immediately, LSN is too lean. If engine takes 5 or 6 seconds to dies then LSN is too rich. Engine should run for about 2 or 3 seconds, then speed up a tad, then die, then LSN is close to optimal.