Yup...Jeff is the man. I took my GTO to him last Friday, and had him dyno tune it. I drove away a very happy man, and drove away with a very different car.

He's great to work with, knowledgeable, and interested in making his cutomers happy. You can't ask for more than that. I'd recommend him to anyone who owns a GM and wants more out of their current set-up whether stock or modded. The price of his tunes are reasonable too, considering that if you need a retune due to a minor mod he only charges for dyno time. Or, if you need to upgrade to a more intense tune due to some serious mods he only charges the difference between your original tune and the upgrade. The dude has a great deal going.