Pedestal mount newbie....E7's on 68 302

[my9302002]

Pedestal mount newbie....E7's

Have a 68 Mustang and recently bought some Thumper ported E7's with pedestlal mounts from someone who went a different route.
I've researched the archives on adjusting them with shims but why does it seem opposite to me?
The instructions read:

"Turn the pedestal bolt by hand (no wrench) until the bolt is snug and the pushrod is seated in the lifter. Next, put the torque wrench on the bolt and slowly turn until it clicks. The wrench should turn between 1/2 and 1 turn. If it turns more than that you need to add a shim. (Shims are available in a kit for about $10.) If it turns less than that you need longer pushrods."

It seems so opposite to me, if you have to "turn more than 1/2 to 1 turn"
I would think you would need a longer pushrod to pick up the slack. If you turn less then this then a shim would be in order.
Help me to understand..
Thanks,
Drew
68 Mustang

 

[liljoe07]

You have to understand that the pedistals are in a fixed position(Kinda). So the Shims are sorta just used to get the correct lifter preload. The shims also help a little in getting the rocker tip toward the center of the valve stem tip.

 

[rd]

I have 94 heads on my 68 block. When setting up for the first time with new rockers or such, put one intake and on exhaust on, and do the indicated check, or otherwise verify proper preload. If you have too little, you need longer pushrods. If you have have too much just shim under the rocker pedestal

After that, I usually just torque the rocker bolts to spec.

 

[my9302002]

I understand now....thanks guys.
Drew