[olddog]

The 89-93 EEC4 A9L uses a 4 wire MAF meter. Were any of the factory MAF big enough to support 450-500 Hp? If so what year/model/engine would it have come on? I was thinking the 460 cid trucks should be some of the bigger ones, but know idea how much bigger they are than the Mustang 5.0 engines came with.