I was looking thru an old(from 2003) RK Sport catalog and notice the Cylinder Head Package for the J -bodies.

The package includes the following Camshafts, Valve springs, guides, & sets, a ported & polished Head, and Ported TB.

I just wondering if any one here has used this only their LD9 powered cars?

If so, about how much does it increase the hp (wheels or crank).

Also is it a good product.

And roughly how much does it cost?

they probably dont make that anymore, they arent really doing a lot for cavaliers anymore.