I just picked one up. Will they handle a mamba monster around 2200kv ? Is it better to just get a Revo ?

It'll handle it but it's probably a good idea to not mash the throttle with the diffs locked. You might want to shim the diffs as well.

Summit diff lockers will explode if you put brushless to them.

The diffs will handle it just like regular Revo Diffs will. Fineish on 4S, explode on higher. You need aluminum cases and diff cups to really hold up on brushless. Cases are available, but won't fit the Summit (locker hardware won't fit), and cups are available from Germany for around ~90$ each.

The trans will handle the power, though.

In short: Put a 820-Size DeWalt 14.4v motor in if you want more power in the Summit. BL just trashes them.

Also the tires will blow apart. they can't handle more than like 30mph

Ya the tires swell like no other but I have a set of truggy tires and wheels for it also. I was thinking low kv and 4s not a speed machine just something more efficient than brushed.

I've seen people do a dual VXL set up that it can handle and it will be waterproof two. I think no matter how you use the MMM it will blow apart the locked diffs. If you do that you would need erevo diffs and bulkheads.

Hmmm dual vxl .... Well it's sitting on the shelf for now with a for sale ad.