The Type S head is good to 9krpm stock on an N/A motor...
And I've heard alot of bad business with RevHard over the last year...Even though, I still give props to Myles Bautista for taking his First Gen CRX into the 11's, I believe...I have some home video of his silver beast with the fender flares made up of cardboard running at an early battle of the imports...

Zee