Raised Port Head Question

Well, rockers showed up today, so I was hoping to measure for pushrod length but it looks like I have another problem… rockers are contacting the retainers pretty significantly on the intake valves, and looks like they are actually taller (pretty new to valve trains but I assumed they would all be the same.) so do I want to go with different springs or should I be shimming the rocker shafts?

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You just can’t shim the stands up. They have to go up and away from the valve.

B3racingengines.com

Look him up and call him. He will correct it the right way. You don’t need different springs.