Jim Smart
January 18, 2011
Photos By: The Mustang Monthly Staff

20 Swap Up To Performance

A carburetor and intake swap is one of the oldest performance tricks in the book because it's a quick way to real bolt-on horsepower. It can be performed in your garage with little more than home mechanics tools and a strong back. Because the aftermarket is so inundated with induction systems and carburetors, it's easy to get confused. The first question you want to ask yourself is, how do you intend to drive your Mustang? Next, what's your engine's personality?

Your carburetor and manifold swap doesn't have to be aftermarket and it doesn't always have to mean larger. Sometimes, it's little more than going from a two-barrel to a stock four-barrel manifold with an Autolite or Motorcraft carburetor from Pony Carburetors (www.ponycarburetors.com or 575/526-4949). Going to a four-barrel intake and carburetor offers its greatest benefit when the accelerator is pressed, which is where you really feel the difference.

Another option is a Cobra high-rise manifold from Tony D. Branda (www.cobranda.com or 800/458-3477) with a period Holley 4150 or 4160 carburetor, which looks authentic. Holley carburetors can be found at any swap meet, including Shelby LeMans bowl style. Tony D. Branda's website has everything you need for a Cobra high-rise conversion at. Visit Holley's website for genuine Holley carburetors and parts at www.holley.com or call 270/782-2900.

If restomod is more to your liking, Professional Products(www.performanceparts.com or 800/585-0683) has a wealth of good-looking performance parts, including polished and powdercoated dual-plane intake manifolds for street use and easy clean up. Quick Fuel Technology (www.quickfueltechnology.com or 270/793-0900) offers you a wide variety of high-performance carburetors that will bolt onto your aftermarket high-rise manifold with a Holley base plate pattern.

21 How Safe Are Your Brakes?

It tends to be an old saw you can't do anything with drum brakes. However, this just isn't true. Drum brakes get a bum rap because they don't always get the attention they deserve when it's time for relining. When you reline your Mustang's drum brakes, remember how important it is to replace everything-shoes, springs, hardware, wheel cylinders, and drums. It's always a good idea to give new drums a light shave because too many of them aren't surfaced properly during manufacturing. Wash drums thoroughly to remove all debris and petroleum-based preservatives. Drum brake backing plate contact surfaces should be ground smooth. And if they're excessively worn, they should be welded up and resurfaced or replaced. The reason we stress new brake drums is wear and shoe travel. When drums are turned to their limits, you will get excessive pedal travel.

We bring up brake safety because this is an easy job you can do yourself. Your main objective needs to be close attention to detail in workmanship and replacement parts. Currie Enterprises (www.currieenterprises.com or 714/528-6957) stocks everything you need to rebuild classic Mustang drum brakes.