Just writing to see if anyone had a good answer as to why these were the only sidebowl carburetors offered during the inline 6 era with the larger .076 jets when most others were .074. Was it because by this time Mercury knew these motors needed to run richer? And with changes in fuel...
I plan on upgrading my 1979 90 inline 6 to a 115 block from 1984 that I have access to. I know there is tons of knowledge here about these old motors from reading. I think I have everything already I need to do the swap. My question is, could I use my carbs from the 90? If so would I have to...