Dana Johnson, Author at Engine Builder Magazine
Just Imports

At my shop, Import Machine Service in Framingham, MA, we do a lot of flow testing and head porting, and are continually working to improve induction systems. Our work, however, is limited to aluminum only. Because I do work for many racers, I get many requests to do “performance” enhancements. Over the years, Mazda Miatas

Prepping Porsche Heads for 24 Hours of Racing, Dana Johnson

One of the more interesting jobs I