i was driving my car home from when i bought it, and i got the urge to floor it.... I was in fourth at arount 4500 RPM when i noticed the speedometer doesn't work... so can anyone tell me about how fast i was actually going?

 

Model and year? The gearing changes depending on the LSD or non rear end, 5 speed or auto tranny, and engine hp depending on the year.

 

its an 87 GXL.....