Whats next?!?!?!

Next thing I would do is disconnect that 6AL, put it behind your back tire and back over it. Save yourself

H/C/I is the best choice hands down

The odds are that the MSD (May Suddenly Die) will do just that and leave you stranded somewhere at the worst possible time.

Long tube headers aren't worth the problems with fit and ground clearance on a street car. Some Ford Racing Stainless steel shorties are your best bet for quality, fit and performance.

The Ford Explorer cast GT40 intake from a 95-97 Explorer is a best choice item. It will have all the emissions ports in the correct place. I got mine off a 96 Explorer with the 19# injectors and 65 MM throttle body for $250. The 19 # injectors have an orange plastic body and an improved spray pattern.

The 70 MM cobra MAF/Sensor only matches the Cobra X3Z which is internally calibrated for 24 lb injectors.
The MAF body and sensor are designed to match each other. Therefore you can't swap sensors between different part number MAF bodies and maintain proper calibration. The assembly is designed to match the computer’s internal program, and swapping a different MAF can upset the computer's calibration. In other words, your Cobra MAF won't match the calibration of your 5.0 Mustang computer.

The only other MAF that is a one for one swap for a 93 and earlier 5.0 Mustang is the 94-95 Mustang MAF.

94-95 Mustang GT MAF - $40-$100. It is 70 MM instead of the stock 55 MM on regular stangs built prior to 94. It uses a slip on duct on the side that goes to the throttle body and a 4 bolt flange on the other. You need a flange adapter to fit the stock slip on air ducting that goes to the air box. Wiring plugs right in with no changes. *1 *2

*1.) Metal flange adapter Kurtz Kustomz Motorsports, Inc. KKM Buy the TR70 for $44.95. Or spend some time on eBay looking for one that may fit.

*2.) MAF & sensor interchange
The 94-95 Mustang 5.0 MAF & sensor is also found on:
1995-94 Mustang 3.8L F2VF-12B579-A2A,
1994-92 Crown Victoria 4.6L F2VF-12B579-A2A,
1995-94 Mustang, Mustang Cobra 5.0L F2VF-12B579-A2A,
1994-92 Town Car 4.6L F2VF-12B579-A2A,
1994-92 Grand Marquis 4.6L F2VF-12B579-A2A,
Evidently the –A1A, -A2A, AA, etc. on the end of the part number is a minor variant that did not change the operating specs. You should be able to ignore it and have everything work good.


The next positive thing to do is to buy a timing light (about $45) and set the timing at 14 degrees.

Timing is free and easy, and you will notice an improvement (though it typically requires premium gas). You'll notice some improvement with the headers, exhaust, rockers, or intake, but a huge improvement with the heads/cam/intake combo. At some point along the way you'll need a bigger throttle body. The rockers will cost you a mile or so per gallon, and aluminum heads will gain you a mile or so per gallon, or they did for me. I would not spend the money on a chip for an 89 5.0.

Don't neglect the suspension. After all it is a 22 year old car. Check out www.uprproducts.com

And don't worry about the MSD. I'm sure it'll be fine. You hear complaints online, but the fast guys run them, whether it's NASCAR, NHRA, NMCA, NMRA, or whatever.

The "fast guys" aren't running 6ALs...they are garbage.