Interesting read. Any idea what a restriction fitting is? Mentions it on the later motors.
breezy, IIRC, the restriction fitting mentioned in the instructions is the original "reducer fitting" for the manual oil pressure gauge line connection to the block oil port - arrow in the 1st pic below. That has to be removed to allow for the oil line "T" connector to be installed into the oil port in the block - 2nd pic below. That "T" allows for connecting the oil line to filter housing and to reconnect the dash mounted mechanical oil pressure gauge line. Clear as mud???
