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I avoid assembly lube, as some engine building books (GM's Chevrolet Power Catalog is one) state that you should then change the oil filter after 20 minutes of running. I just make sure there's lots of fresh engine oil on the cam bearings and journals before installing the cam and torquing the caps down, and that the lobes have been liberally drenched. Then fill the oil 'bathtub' in the head until it overflows and the oil escapes down the drain holes into the pan. At that point the cam lobes are running in an oil bath - as Volvo's engineers intended. Think about it: this duplicates the conditions the engine sees every time you restart it after a shutdown of more than a few minutes, so why use any special lubes?
If you are installing a new oil filter at this stage (and whenever you change the filter), fill it with oil before fitting it to the block, so the engine gets pressure in its galleries and passages the instant it fires.
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Bob (son's 81-244GL B21F, dtr's 83-244DL B23F, 'my' 94-944 B230FD; plus grocery-getter Dodge minivan, hobbycar MGB, and numerous old motorcycles)
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