By design some cam/lifter combo's make it very difficult, if not near impossible to get oil to all the rocker arms simply by running the drill and turning the engine a few times.
I've ran into this more in recent years as we are using more custom cam profiles with smaller base circles, custom flat solid set-ups, and retrofitting to hydraulic and solid roller stuff.
It's not really a big deal, as long as you make sure the oil band on the lifters is correctly located during engine assembly.
Many lifters are also metered, as I found out when using the Crower HIPPO lifters for the first time. We gave up trying to get oil to the rockers first time we used them, but they do a fine job in actual use of controlling oil to the top of the engine.
+1 on assembly lube, if you are going to wash it all into the pan with the drill anyhow.....Cliff
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73 Ventura, SOLD 455, 3740lbs, 11.30's at 120mph, 1977 Pontiac Q-jet, HO intake, HEI, 10" converter, 3.42 gears, DOT's, 7.20's at 96mph and still WAY under the roll bar rule. Best ET to date 7.18 at 97MPH (1/8th mile),
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