Details to convert pressed piston pin to full-floating?

The 340 I am renewing has bronze bushings in a set of 340/360 connecting rods. However, there was no oil hole drilled. According to factory service manual (at room temperature) the clearance is a thumb press fit with 0" to .0005" clearance for both pin/piston and pin/rod bushing. Not knowing if these rods are converted from pressed pins or if they are rods that were originally factory full-floating rods, I have two questions:

1) Does anyone know if factory small block full-floating rods used an oil hole in the rod small end?

2) Does anyone agree/disagree with this comment I found on an internet search?
If you choose to not use this setup (no pin-oiling) make certain to have between .001" and .0015" clearance between the pins and the rods and a minimum of .001" between the pistons and the pins!

Thank you.