How much horses?

I just found this. i thought i had writen this down.

My pistons are 2266 TRW Forged magnesium
often called 10:1 pistons.

My buddie works at a parts store. He said that the engine sounds like it was built for nitros. I'm not going to do that, but I just want to know what the engine is up to. He says 400 HP easy. I don't know though.

Anyone have any thoughts?

Phil