I have read and read threads dealing with this subject, sort of. I can't find the answer I need so here it goes.
I have a 66 coupe with a 347 Stroker and TKO600 with a 3.80 gear ratio. The original ratio was 2.80 with a 3.03, 3 speed. My speedo is reading about 10mph fast. Anybody have info on which color gear or number teeth I need? Thanks for any input. I've trolled followed this site for ever looking for information and it has been a gold mine. Thank you all for that.