It all depends on your goals. With a stcok GT motor and 14 psi KB Kit running 100+ octane gas you can see 500+ rwhp. How long will the stock internals will last with that amount of powers is another question. But I guess that if you keep that level of rwhp for a few pass at the track you should be ok. Now, the other option would be to wait a bit for the 2.2L kit. Coupled with a built engine I'd say you will have TORQUE MONSTER! Just my .02
There's not really in info to get as they're not releasing any information other than the fact that they're looking into producing it. Word is their preproduction kit just made over 600 hp on a shm motor on an engine dyno. They have a tech forum on modularfords.com