[Alan Roehrich]

Get it in writing from Pat Cvengros, or Dave Ley, but the basic intent of the roller rocker arm rule is that the rocker arm must bolt to the head without modification or machine work. I don't see where the rule specifies the method of adjustment, or that the aftermarket roller rockers must be non adjustable if the factory rockers were non adjustable. So you may not need to buy non adjustable rocker arms. I'd see what is available that I wanted, and then contact Pat and/or Dave.