im going to install a ev27 andrews in my stock 1340 efi 1998 ultra classic. its a "bolt in" do i need to have this motor re-mapped? and should i do something with the intake and or exhaust? what woulf you do. i just want a little more power and torque. will it harm my fuel mileage?

 

Did something similiar with my evo. If you mean remap as in EFI, maybe... Be sure and replace the inner cam bearing, new adjustable pushrods and new lifters.

 

TTS offers a version of the Master Tune software for the Marelli EFI systems (buy the new one (Delphi) and you can download the old (Marelli)). If you change the cam, you will need to make some calibration adjustments.