Cylinder Heads

Dark04GT said:

+1. Had the same experience. These cars love boost.

These cars are easy to work on. Find a reputable local tuner that is familiar with mustangs. Go ask them what tuner device they prefer and the best way to get your car to them. Take your time and read the install instructions. The install instructions are online: https://cdn.shopify.com/s/files/1/0...4_Ford_4.6_Mustang_GT.pdf?9690377850305210013

Get an upgraded fuel pump or even easier- add a boost-a-pump: http://kennebell.net/products/accessories/boost-a-pump/

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Sluggie24 said:

Finding a good tuner is very important. You want someone familiar with tuning these engines as they will probably already have stored tunes to use as a base for your tune, and understand what works and what doesn't. They will also be familiar with what the engine can take without damage down the road. An experienced mustang tuner will not only be able to get you the most safe power, but can do it faster which will save you $. Dyno tuners charge by the hour so the faster they can get the tune done the less it costs you.

I was lucky to have a great tuner about an hour away from me who has tuned countless mustangs. He came recommended by several people I talked to in my area. He was even able to send me a temp tune so that I could drive the car to him and didn't have to pay for a tow.(I had also changed the MAF so the car wouldn't run without a new tune)

I'm not sure where you live but good places to get info on tuners would be, the local racetrack(both the track workers and the racers), local mustang groups/clubs, local performance shops etc. The people most involved with mustang performance are usually the ones who know where the best tuners are. Also be aware that the tuners in some areas are being harassed by the .gov because of emissions regulations. Some will only tune a street car if you are referred by their customers. It would be a good idea to get a few people's names and vehicles who refer you in case they have that requirement.

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Sluggie24 said:

Your next mod should be gears. 3.73 is the best ratio for a street car IMHO.

The stock heads can be ported and polished. Depending on who does the porting they can be made to flow almost as much as TFS heads. That will add a solid gain in power.

I think you should save up and get a base supercharger kit. It will cost you about what a head porting job would cost but make much more power.

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