For my 2 cents, run the engine for at least 20 minutes at at least 2000rpm--it's the oil splash and drainback that lubes the cam and lifters and you need plenty of it flying around. Also, use your thumb and fingers to rub the EOS into the cam lobes and lifter bases--don't just smear it on with a forefinger. As soon as the engine lights, DO NOT let it idle, even for a few seconds. Initial startup is critical with a flat-tappet cam, especially--as Jerry said--if you have a lot of spring pressure. Short of pulling the pan to clean out the gunk, one other trick you might use is to take the oil filter adapter off and plug the bypass valve so all the oil has to go through the filter. Use something like 10W30 oil because the cold startup oil pressure will be higher, then after the cam is broken in change the oil and filter again while the engine is hot. Good luck!