Dave Griffiths FIA Triumph TR4 is almost ready for the 2016 season. We decided to get it on the new rolling road and get some data stored on the computer as well as checking on the mixtures. The new gas analyzer will plot all the gasses on a graph when we do a power run. With the CO’s now on a graph we can look at the trend, see where it is leaning off or getting richer. The TR4 was leaning off towards the top end. We changed an air corrector and got an increase of 2.2bhp. Not a huge amount but every little helps.