Am putting a 350 together with Edelbrock E-Tec heads and edelbrock roller cam in a '68 block. Using summit aluminum needle bearing rockers and edelbrock roller lifters.

Bought the tool to measure for the push rod length...but nothing has any instructions!

I know the rocker arms have some adjustment in them, and these have a locking hex bolt inthe middle to lock the adjustment.

What i need to know, i think, is where to start the rocker arm at to measure the push rod length....

thanks for any help here...totally lost i am.

chris