Rick-----keep in mind that this guy is building an 1965 Comet AF/X clone
Back then they didn't turm 9000 rpm, we ran them mainly just a little over 6000rpm, we didn't check valves every 50 runs, we checked them every run, we didn't run 400 # seat pressure, we only ran 200+/- until just a few years ago .
We ran 11/32 valves and a lot of 5/16 stems---some titanium intakes but mostly stainless on the exhausts
You can't run an rev kit on an FE engine
The lifter bores didn't have
oil galleys thru them( You should of seen the 16 3/16 stainless lines I ran to the lifter bosses on one for a hydraulic cam for our tow vehicle)
The early engines used a hollow deep lifter for a longer push rod, later they had cut away tappets and later used Falcon 6 cylinder tappets.
I also wired the dual point distributor so I could switch one set off to retard the timing in high gear and for starting.
Someone also loosened my
oil filter when I was away from the car and that was almost a disaster.
Jerry