I have a ZC Sohc In My Rex, N I am very themted on adding a vtec had I know its a frankenstein motor but people tell me its pretty good if done right. Which head would u guys recommend the d16z6 or the d16y8, I was to told its better to go with the Y8. Im planing to add a stage 2 clutch n pressure plate for my car cause the stock does seem to grab after 5k rpm.