I have a 78 cutlass and the master is junk..I also have a 85 Monte for parts..well the master for the Monte is larger and aluminum vs the original on my cutlass..the bore on it is a bit larger to fit in the booster..can this be grounded down to fit and everything will work with no issues?? Also just so it's known I know new ones are cheap but at the same time I don't have any extra money for my toys right now...thanks in advance