COMP Cams E303 cam

Got questions?  We’ve got the answers—the Summit Racing tech department tackles your automotive-related conundrums. This week, we’re talking about the merits of O-ring grooved Ford cylinder heads for high-horsepower nitrous applications. L.M. • Post Falls, ID Q:  I’m building a 5.0L engine for my 1987 Mustang, and I have a question about cylinder heads. In