Quest for speed
 

Hello Guys,
Bit of a long shot but trying to work on bulding a subaru for top speed rather than outright acceleration and wanted some advice re gearbox, diffs, aurodynamics etc
I have a 1999 subaru impreza with a 2004sti motor and AVCS heads, I also have a SC50 Billet waiting to go on but want advice re is it bette to go for a six speed conversion or would Scoobyclinics five speed be better. et etc
Any advice would be helpful
Cheers,
Kris

speak to kev at clinic, he will be able to advise ratios etc