Now it sounds like we're getting somewhere! Already purchased the flames gas cap - having the flames golded (big surprise).
They make two models of the Flames fuel guage. One says:
"Fits '04-'08 FXDB, FXDL, FXD35, FXDWG and FXDF models, '07-'08 FXDC models, '04-'07 Softail® models, '01-'03 EFI Softail® models (except FXSTDI), '03-'07 Road King® and '01-'02 EFI Road King® models."
The other says:
Fits '08-later Softail®, Road King® and '09 Dyna® models (except FXD).
Neither will fit a 2001 FXDWG2.
Skreminegul - would one be easier to mod than the other? Based on your description of the EFI and Non-EFI functionality, it appears that may be the case but - and I'll show my ignorance here - weren't all HD models after '04 fuel injected? If that's the case, it must be some other sort of difference in the two part numbers.
Looking for advice on which one to buy to begin th emod process???