Luis, You're looking for T&D's right? I have a spare set but they're all the high ratio ones. I meant to ask around but forgot, I'll see what I can come up with. Neal
The port layout on the heads is different. I can take some pics and post them if you want me to. Neal
Here's a pic I stole from a for sale ad. http://www.turbobuick.com/forums/attachments/image-2014305696-jpg.161878/ These aren't T&D rockers but you can see the offset in the intake rocker arm. Neal
Luis, You need different rockers depending on whether or not your heads have rocker stands. If they do, they are set up for T&D shaft rockers. If they are milled off then they are set up for Jessel rockers. The rockers I posted the link to are Jessel rockers. The high ratio T&D rockers are 1.73 ratio I believe. Neal