Installed the hood latch rod grommet. The wider power steering belt seems to have helped with the low speed pulsing, but could be the belt is adjusted differently now, or a placebo effect.
I keep reading posts on the Holley forums suggesting that a fixed orifice PCV valve improves idle quality and consistency. So out of curiosity, I installed an M/E Wagner adjustable PCV valve. The valve has separate adjustable idle and cruise circuits, but I set it up for fixed orifice (which is also adjustable). It ran a little rough at first, but after adjusting the IAC and some time on the road learning, it runs better than ever. Idle is definitely smoother and stays where I have it set.
Since it's working so well I'll keep it this way, but will install an oil separator catch can to avoid problems with oil consumption.
