Ive Got A

2.0 16v REDTOP Engine
Twin 45's

The Car Had An F16 Gearbox In Which Didnt Last 2Mins, The Diff Has Now Gone. Ive Just Brought An F20 And I Was Looking At The Gearbox Calculator And The Top Speed In 5th Is NOwhere Near 125MPH Which The Car Was Doing Full Wack BEFORE The Diff Went..

What Speed Should An F16 Do And More Inportantly What Will The F20 Do?

Thanks Lads Craig