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
Jorge