I'd go with a good set of cams that you can use with your stock heads. Check out the Woods TW6-6 cams. There's lots of great cams that make monster torque to choose from.
LOOK at a LOW RPM set of cams BUT FIRST go for a FULL stage one (slip-ons/SE air) using the TFI for the fuel management...
YOU WILL be able to come in at OR UNDER 1000$$ and YOU WILL be happy with the results.... TRY THIS FIRST THAN THINK CAMS if not enough power
I really doubt if you will NEED TO GO for the cams,,, I FELT the increase of POWER with THIS full stage one I installed ...
"THE KIND of POWER you FEEL in the SEAT AT OF YOUR PANTS"
LOTS OF LOW END TORQUE........... pulling you and a load on the bike effort-less........
On my 09 FLHR i did the V&H slip on mufflers (nice low rumble sound)
scream'n eagle air,,,,,AND the TFI....
TFI made the BIG DIFFERENCE,,,, I DON"T FEEL THE NEED FOR CAMS NOW!!!!! I'm happy two up and loaded with this set up..
MY COST
V&H exhaust 350$, SE air 125$, TFI 255.$ = under 800 $$$$$
YOU might try something like that on your bike..... exhaust and air THEN the TFI...YOU ALSO MIGHT NOT find the need for MORE .....
BUT if you do want LOW END CAMS latter,,, no problem as the fore mentioned will go WELL with cams added at a later time.....
signed....BUBBIE