We need to tingle that topic a little.... 
I'm all ears.....
I can think of more then one that can benefit too.
Not a problem. This is all "out there" somewhere. But here it is again all in one place for easy munching. A bolt on package that produces good numbers and runs well without any signs of crankyness. With this I got good numbers (less important) and a great running/feeling/sounding bike that pulls like a teenage boy on a rope outside the girls' shower room (more important).
From Harley:
HTCC CNC Ported heads
50 MM SE throttle body and mated intake
SE oil pump and cam plate kit
their newest version of the SE adjustable pushrods
new set of lifters
From Axtell:
107" direct drop on cylinders (3 15/16" bore)
They've got a kit package that included the cylinders, pistons and work to the above cylinder heads to dial them in to the rest of the package. An alternative is some work Dave Mackie can do to the heads to accomplish the same thing or better.
From Dave Mackie:
DM598 cams and gear drive kit
From GP Designs:
GP Designs Bearing Support for engines without a timken conversion in the bottom end
Exhaust:
D&D 2-1 Fatcats with quiet baffle. Cheapest I found was here:
http://www.automotivemachine.com/contact.htmBreakdown above brings pieces together from the smallest number of vendors. I collected parts over a bit of time and saved several hundreds of dollars on the heads and a few other pieces on eBay. But you could score it all at one of the 20% off shops and still not do badly. I also used a set of new SE cylinder studs and went to roller rockers. Those wouldn't be absolute requirements to do the deed. In fact I likely would not have gone to the expense of the roller rockers were it not for getting a set of TP rocker boxes and roller rockers for about $250 total.
I also have Feuling's oil pump, lifters and cam plate and a Zippers throttle body. But those are basically distinctions without a difference to the end result. They were already in the motor when the top end rebuild was done. So there was no reason to remove them. The SE variants should do as well or better. Using them would mean that many fewer vendors in the mix.