I can't help you with the spin-on filter install but very definately you need that head lubrication line. Thats where the rocker arm gets it's oil.

Come to think of it, aren't the spin-on on the distributor side? If so then run the lines around the back of the engine.

1953 Chevy 5-window 3100
In the Stovebolt Gallery
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Dave
Engine & Driveline Moderator

If you can't make seventy by an easy road, don't go. ~~ Mark Twain