how can a person make an 88 V-6 bird tach dash panel work in an 88 V-8 4bbl bird ?or can it be done without serious mods ? are v-6 120 mph tach dashes desireable at all ?

gonna try for searches and see what i can find,,,

thanks for anything,

 

ok i found out that 6 tach wont work for 8, so does anyone have an 8 tach they cant use on their 6 engine and want ot trade for my 6 one ??