final gear

[bmwE34]

My UZ VVTi with manaul 5 speed trans from 1JZ GTE with aluminum flywheel What is correct final gear ratio for street race right now i have 3.7 and 3.9 which one i suppose to choose cant make up my mind please help What is your opinion

Thank you

 

[grahamd]

The VVTi needs a taller ratio to make it pull hard. I'd use the 3.7 ratio.