71. 6 is better than 5! (it's one better)
Aside from the engine, the biggest change will be the 6 speed transmission. We opted for the DCCD controlled tranny so I could change in real time the power distribution bias from balanced, to favoring the front or rear. The shorter gear ratios are also a plus when in tight technical portions of the rally. Make sure to buy the shift linkage with your tranny if possible. We needed to buy new pivot rod, fork and slave cylinder to go with our upgrade.