will there be a problem with my speedometer if i switched from tbi to a tpi computer, or perhaps if i switch to a turbo sunbird computer?

 

i don't think there would be a problem with your speedometer but as far as the sunbird it won't work. and as for the tpi i don't think it would work either. even a computer from a 350 tbi would be different then a 305 tbi and if you switch from tbi to tpi i know you need a tpi computer and wire harness so i don't think that would work either. a computer from a caprice will work, as long as it's 305.