It looks like you have one of the later rocker oiling fittings. Check out this page.
With that type of oiling fitting you should have rocker arms with the oil groove offset from the bleeder hole on top.


Kevin
1951 Chevy 3100 work truck
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1929 Ford pickup restored from the ground up. | 1929 Ford Special Coupe (First car)
Busting rust since the mid-60's
If you're smart enough to take it apart, you darn well better be smart enough to put it back together.