Paxton supercharger on carb`d 70 Mustang
A friend of mine put a Paxton on a 1971 Duster 340. He had quite a few problems with it. The box (new) kept leaking around the grommets where the linkage went through, the floats had to be replaced with fiberfill floats because the pressure crushed the brass floats, and the carb had to be rejetted very rich to handle the extra air when under boost so it was too rich when he was just cruising. Other than that, with 10.5:1 compression ration and boost limited to 5 psi, it ran great (almost as fast as my 1970 Duster 340 with a cam). All this was on 100 octane gas. My suggestion is to go to a junkyard and buy a 5.0 Mustang fuel injection setup. You'll avoid a lot of problems. My friend finally took the Paxton off because it was too much trouble to maintain the leaks and bad gas mileage.