How do I tune it?
Via a laptop. AEM offers a free working version of their software that can be downloaded from www.AEMElectronics.com, as well as base calibrations for a wide variety of engine configurations and setups. This allows the AEM EMS to be scaled to all the sensors and loads in a base calibration that is designed to get the engine up and running and ready for fine-tuning. AEM also offers a live help window to ease tuning problems.

How much?
Prices range from $1,150 to just over $3,000

Source:
AEM Power
310-484-2322
www.AEMPower.com

Affordable Fuel Injection
What packages do they offer?
AFI builds wiring harnesses to upgrade throttle-body injection (TBI) into most vehicles, and TPI/MPFI harnesses to make the conversion to fuel injection, as well as complete stand-alone fuel injection systems for TBI, TPI, and MPFI (multiport). AFI markets its TPI units exclusively with First Injections of Wisconsin. TPI and multiport systems use new commercially available manifolds, and AFI tunes the system and includes all of the components to install these systems. Currently, AFI primarily uses GM electronics, but are developing their own engine controller, software, and throttle body.

Easiest kit?
The best street car kit has to be the TPI unit. This unit is built with significantly larger runners than the original TPI units, features all-new aluminum castings, and supports up to 500 hp.

Best for racers?
The AFI ECM is fully programmable and capable of nitrous and wideband oxygen sensor control, so there is no need to order a separate package.

What do you get?
Complete MPFI and TPI units come with intake manifold and fuelrails, injectors, throttle body, all necessary sensors, external high-pressure electric fuel pump, wiring harness, a calibrated ECM, and a distributor. For complete TBI units, you receive ECM, wiring harness, relays, all the necessary sensors to operate the system, high-pressure electric fuel pump and adapter plate/throttle-body assembly. Also included are wiring harnesses and a custom calibrated chip to operate the ECM.

What options are available?
Emissions options, torque converter clutch (such as on the 700-R4), electric fan, 4L60E and 4L80E transmission controls (TBI only), rpm lift for winch and compressor operation, VSS output for electronic dash display

How do I tune it?
AFI kits come pre-tuned, but for big cams and high-performance engines additional tuning is accomplished with software and an exchange of calibration chips. Low-cost programmable units are also available.

How much?
Prices range from $950 for a TBI unit up to $2,500 for a big-block MPFI unit. Customized units built to customer spec are available as well.

Source:
Affordable Fuel Injection
248-556-5976
www.affordable-fuel-injection.com

Dynaformance
What packages do they offer?
EFI packages are offered for traditional V-8s and V-6s (transverse mounting), cross-ram applications for V-8, custom marine, and dune buggy applications. Applications include: Ford 302, 351, FE, and 429/460 engine family; Chevy SBC, BBC, and LS engine family; Dodge 5.7L/6.1L Hemis. The CFI is also available for air-cooled VW applications and any custom intake manifold that will accept IDA Weber carbs. Also, Harley-Davidson side-draft applications are available. All applications are available as hardware only or with electronics from several engine management manufacturers.

Easiest kit?
The easiest kits are the bolt-on Classic Fuel Injection (CFI) manifold assemblies for traditional American V-8 applications, i.e. small-block Chevy, small-block Ford, and FE Ford. They're ready to run since Dynaformance has over 60 base tunes in their library, many of which are downloadable from their website.