RE: gas mileage
OK ladies and gents. What mods can I get away with on an 87 5.0 LX M5 and not hurt my gas mileage.. I know a set of MSD wires and coil wouldn't hurt. Niether would underdrive pulley. But what else. Exhaust??? Electric fans???? What headers would be ideal for a mostly stock engine 1 1/2 1 5/8 ???? What mods have you guys done that have hurt your mileage????
FiveORookie
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