89sc gas mileage way down.
On my brothers 89 sc, with 184k miles he has been getting terrible gas mileage ever since he bought the thing. The motor has been apart, and the headgaskets have been done, so I don't think that gas mileage is giving to "old age".
I drove the car from buffalo to rochester today, which is about 80 miles each way. I got 150 miles out of the last tank, and this is on the freeway out of the boost.
The car has magnecor wires, new ford double platinum plugs, and free flowing exhaust. It has no mods other than this.
The car runs fine, but once in a while I will get a check engine light for the maf, I think the maf is headed south. I have a new maf for it.
So, i'm going to replace the maf, and put a fuel filter in it. Anybody else have any ideas why the mileage is so low?