Get the TZ for $179. Read this thread http://monster.traxxas.com/showthrea...hreadid=266348

Or do what I did at first when using a bump start. Get the TZ (P)-T w/ the 11K slide carb. It was a near drop in. No grinding crank fins, no screwy carb linkage changes, I just had to put 2 thin shims from the Ofna Shim kit on the shaft before putting on the stock flywheel, trimmed the inner edges of the clutch shoes with a dremel, used an HPI clutch nut, and slightly elongated the tranny mount holes forward. It took a total of 1/2 hour and $10. I'd call that a near drop in.

I'd now add-get the 3Racing motor mount!!! http://www.3racing.com.hk/ # RE-052/T If you get it you can move the motor back and won't have to elongate the tranny mounts but the littlest bit.