from what rich said anything above 1800whp you are on borrowed time with the gtr blocks.. ams/t1 are all splitting blocks in half at that hp level. mazworx is supposedly in the process of solid billet blocks and possibly a water jacketed block as well, similar to the sr20 and 2jz blocks they offer.
i guess after todays roll race event rich is number 1 qualifier with a 181mph.
