I've an '06 FXDL fitted with 8 deg injectors, V&H BSS c/w quiet baffles, TP Eng's Scramjet filter, and a PCIII with map 811-003 i.e. BSS, O2 eliminators+ SE air filter, however, it pops like crazy on deceleration! Does anyone have any tips on any map adjustments I can make to smooth things out, please?

 

To get rid of the decell pops on my bike I added fuel in the 0% and 2% throttle position from 1500 to 3000 PRM. I tried going leaner and going richer. In the 0% column I added 7 in all ranges and in the 2% I added 3 in all ranges. I started with a Zero map so I could see what the changes in the RPM ranges did first and when I had that problem solved I started working on the rest of the map, setting it up for how I ride it. Don't forget to make sure the PC3 sees the throttle position as 0%, when I installed my PC3 it had the position set at 4% instead of 0 at idle.

 

Trysetting your timing at5 at 0 throttle and 10 to your fuel at 0.
You could also go to 5 in your fuel only at 2% throttle.
Do this down the entire column.
Had one tuner do this and it worked. Another tuner I know agrees.