I have a set of aluminum '64 Buick 300 heads that I’d like to add these valves and replace the valve seats if necessary and do a bowl port & polish: Ferrea P/N F6223 (Intake valve for a Ford 2.3L), 1.74" head diameter, 11/32" diameter stem, 4.8 long, 0.4" tip. Ferrea P/N F6224 (Exhaust valve for a Ford 2.3L), 1.50" head diameter, 11/32" diameter stem, 4.8 long, 0.4" tip Can anyone recommend a good shop to do this work? Preferably in Nor Cal.