...Once you pull the pump make sure the plate is in good shape, also you'll see two tubes that go from the divider into the Timing cover, check them for condition and that their rubber O ring gaskets are in place...
Woh there big fella! There are no tubes or O rings in a '68(8 bolt) set up. Also, the '68 (8 bolt) set up has 2 divider plates(see below)... You will most likely have to work on one of the plates to reduce the clearance to the waterpump impellor...VERY IMPORTANT!
Post some photos so we can see your full set up. That will help tremendously.
Last edited by Bronze Bird; 07/28/1003:26 PM.
I'm a hobbyist. Not a professional. Don't be hatin'!