That head is a small chamber that has been worked on. New guides, hardened seats, larger valves (maybe 1.94 intakes) Opened the chamber around the intake valve. Personally , I would open the chamber more around intake valve on spark plug side.
All in all, this looks like a great head. Install the lump kit.
Some material may need to be removed around the lower bolt bolt in the floor of intake port, but not much.
Last edited by tlowe #1716; 05/23/17 02:50 PM.
