Any advantage to restricting oil to rockers?

65Val said
johnnymac, thanks. He is a well respected race engine builder in these parts, and that was probably his reasoning. He said he just inserts 2 different sizes of roll-pins in the supply hole at the top of the cylinder decks to restrict the flow.

Thanks again.

cool, i learned something there... i suppose you could use roll pins to do it! in mine he threaded the passage, inserted a plug, and then drilled a small hole in the plug. anyways glad to help!