called dobeck + talked to dillon, ordered the generation IV fuel controller with A/F gauge + handlebar mount $15 xtra. got a nice military discount after conformation. about 10 days he said. i will never do cams + with its adjustability + gauge to verify what my A/F ratio is this is suited to me. my 13 hammer "seems" to be running well as is with a ness filter, lloydz timing wheel + drill modified cobra tri-flo with dealer download. the gauge with its wideband will tell me the truth!