Thanks for the advice. The more I read on this the more I realize that this maybe isn't the kit I'm looking for. Might as well stay with the Stage II and maintain warranty because I'm not looking to run RPM's consistently high. It sucks that HD sells this "kit" as if were almost plug in play with great performance. Or maybe the target audience is a small few with a heavy bike, IDK.
So, if I were to have these heads below installed and opened up, what else what I need to complete it? race tuner, etc.?
Any good options to have these opened up in the Midwest? And/or would the Stage II kit with maybe a little mod be better off?
I'm guessing that if the warranty would be out the window if I had the motor running 115/115. But those numbers are what I'm looking for, just before the 6500 range. Also, what is the most common air cleaners that assist in producing power?
Sorry for all the questions, just want to get as close as possible to satisfaction when it's all said and done.
Thanks

Screaming EAGLE PRO TWIN CAM MCR
PERFORMANCE CYLINDER HEADS
3
We've combined the proven Screamin’ Eagle valve train
components and innovative port shapes from our Evolution®
1340 cylinder heads with the Twin Cam engine “bathtub”
combustion chamber with a volume of 76cc’s to create a cylinder
head that really performs. Valve spring can accommodate
up to .585" valve lift camshaft kits and up to 6500 RPM.
Heads are machined to accept Mechanical Compression
Release P/N 32076-04. All EFI models require ECM calibration
(priced separately). For race application only.
Fits ’99-later Twin Cam equipped models. ’99-’05 models
require separate purchase of (2) Intake Seal Flanges P/N
26993-06. ’06-later models re-use Original Equipment
Intake Seal Flanges.
16952-08 Black Highlighted. $949.95
16953-08 Silver Highlighted. $949.95