915/72 trans suggestions 3.6 engine (gears street good set and 5° "long")

[dan67]

Hi, my project is:
3.6 engine (small tuning= pistons+exsaust+dme..i suppose 270cv)
915/72 gearbox (row/oil cooler)
3.2 cabrio body

gears good set for street use and 5°gear "long"

you have any suggestions..please post.!

thanks!GRAZIE!

915/72 STD gears chart:
1st gear: 3.18 (11/35)
2nd gear: 1.83 (18/33)
3rd gear: 1.26 (23/29)
4th gear: 0.97 (29/28)
5th gear: 0.76 (38/29)
Ring and pinion: 3.88 (8:31)