Ok, so I'm at the point of checking piston to valve clearance on my stroker motor. I'm using the ford motor sports Z304 heads with the offset intake valves, and the scorpion offset roller rockers for those heads. I bought what I though were the correct pushrod guide plates from Speedway motors, but putting everything together, the rocker roller tips are no where near where they should be. Should I cut the Speedway guides and weld a tab across them once in the correct place, or buy a set of adjustable plates from comp, or afr, etc.??