So my 5.4 started overpowering my stock clutch today. Its a 1999 gt with a 2v 5.4. First question is more just reassurance for what I found, my car has a 10.5 diameter 26 spline clutch,correct? Second, what "stage" would you recommend for a 400hp max on spray(someday)? Got good legs so don't care about stiffness, price on the other hand...that's an issue.