fully open secondaries

[fat frank]

Definately a benefit to rremapping the AF on a dyno with either the TB, TECU, or PCV. The PCV with the addition of autotune on the newer models is the ticket. It tunes on the fly.

 

[HellFire]

The Triumph TOR's tune uses those secondaries to richen the mix by closing them a little more. Removing them will give quicker throttle response but might lean the bike too much without richening it another way.