Larry,

You may not have to modify your linkage and get new studs. We used to run an STR-14 on our N/SS car. An old Max Wedge guru from Jersey turned us on to a thin, gasket-like spacer that is made of plastic. It is made by Comp Cams (of all people). It is part number VH301. This spacer has the 4-hole top, but it extends into the manifold ceiling. They are roughly as thick as two gaskets. They are non-detectable in appearance.

Great car. Manifold makes it one-of-a-kind. Don't change a thing. Send me a PM with your e-mail address and I'll send you pictures of the gaskets. I have no idea how to fix my digital camera to take pictures small enough to post on this site. Tom