IF Mine,,,,, I would get a full stage one FIRST. Exhaust,, full from the head pipes (to rid cats) and to lower back-pressure with better sound YOU like...
Scream'n eagle air OR similar for more air.
Then add the TFI for the fuel management.. Gets out the Too Lean condition.
Now those ARE the Needed things FIRST... You Might like it there.?
IF That doesn't improve it to a point you are happy,,,, then go to MY next step as I have done,,,, and install SE255 cams..... Now I'm Very Happy.... on my 09 FLHR,,, and will only go 103" when I put some wear on the pistons... (40/50 thousand miles from now) and a little flow on the heads.
If you still want More,,, THEN you can go Like 103"/or bigger and COMPLETE the engine build and Reap the Harvest... Doing some Head work & flow while heads are Off...
IF you piece-meal like above, YOU can STOP at a point but Yet have more to complete the Proven build """IT comes from a FULL Proven plan of a BUILD"""... NOT a hodgepodge type that add here then there and nothing works with each succeeding part...
This combination is a good build and doubt if it would be Un reliable on any TC bike...
Many have done this build and been happy with the Torque and HP found along the way... Some Stop here and or there to find where they want to be...
This FULL build comes from ONE OF the PROVEN BUILDS and there are Many others you can follow, depends What you are looking for, type of bike and style of riding, and Where you want the power band to RPM. with Good results and not a BUNCH of Mismatched parts..
Many proven builds can be found by looking at other bikes and talking to other builders and looking at dyno charts...
Find what you want and go there,,, not miss-matching parts is the Key so IT will run right when ALL is done......
signed....BUBBIE