1600 with a 5 speed Trans

["Chuck Kyle" <chuck@chuckkyle.com>]

I have a 68 1600, just finished doing some major work.  One of the things
that I fixed was the transmission, but I swapped the 4 spd for a 5 spd, now
my speedometer is reading about 30 mph over the actual car speed.  Is this
due to the new trans?  Is there something that I should do, or just keep the
calculation in my head?

Thanks in advance

Chuck