CenterForce II has been in my street/strip 1968 GTO for 6 years - with no issues. I'd buy it again.
FYI - With any clutch, break in process is critical to clutch performance and life. Many people (me in the old days

would put a clutch in and "go test" it HARD! Not good! Make sure to follow the directions and you should be fine.
Oh, and re-surface your flywheel too.
.
.