Rivergate with a 4.55 or 4.22?

[TheMidget69]

I have plans to convert my midget from wire to bolt on wheels and in doing so I am thinking about changing the rear differential. My Midget currently has a 3.9 with rivergate conversion. Is installing a 4.55 or 4.22 a bad idea? I use my midget as a daily driver...so i do plenty of interstate driving. I guess i just want more of a jolt off the line and while passing cars.

thanks

 

[spritenut]

I went from a 3.9 to a 4.22 when I put the 5 speed in.
I like it much better and I can still cruise at 80 in 5th all day long.
4.55 might be a bit much but you will be first off the line if you can keep the tires from smoking.