I have a Tomei 252 intake cam it has a grove in it but the mechanic said it should still work fine. I also have a barely used N1 water pump.
cam... $250 USD Shipped
n1 water pump... $150 USD shipped
The reason I am selling these parts are on this thread..
http://www.skylinesaustralia.com/forums/Gt...ri-t340007.html