No problem.
Since your set on pulling the pan off, tap the two holes in the front main cap for 3/8-16NC and drill out the bottom holes on the timing cover. Doing this will allow you to take off the timing cover in the future without removing the oil pan. Also drill and tap the snout of the crankshaft so you can draw the balancer onto the crank instead of hammering it on.
When installing a timing cover, before bolting it on, use the balancer to center it, or you may end up with an off-center leaky seal...
If by "tapped for an oil filter" you mean the stock 1/8"NPT holes for the bypass filter, since this setup doesn't filter alot due to the small lines, etc... I wouldn't worry about what filter you use. Use whatever you want to. Make sure you don't run too big of lines or you will loose oil pressure at the bearings. If it has been converted to full flow oiling, you will need larger lines and you will need to use a filter that has a bypass built into it, otherwise the pressure drop will end up starving the bearings of oil and you will burn it up. For example, the stock 59-62 261 full flow filters have a bypass valve built into the head of the unit...
swapmeet at Grayslake, IL on Feb. 29...
