Old School EFi is located in Vancouver Washington.

I custom program performance TBI / TPI chips for Chevy V6 & V8 engines 4.3, 5.0, 5.7, 7.4, 305, 350, 383, 400, & 454 1987 - 1995. I use my laptop computer to read data information from your vehicles computer while being driven, and custom program a performance chip to your vehicle. I also custom program TBI performance chips for Jeep and International TBI conversions.

My chips come with a 30 day customer satisfaction guarantee!

I work by appointment only.

What does a performance chip include? The process includes tuning the vehicle under real world driving conditions. This allows me to adjust the computer's chip programming from normal driving to wide open throttle. In order to optimize the computer's chip programming, the vehicle must be put through driving conditions, something a mail order chip or dynometer can not duplicate!

You can expect: • Increased horsepower • Increased torque • Better throttle response • Increased gas mileage • Overall better drivability

Thanks for taking a look.