Day: 26

You’ve got questions. We’ve got answers — when we work with the Summit Racing tech department to help you tackle your auto-related conundrums. In this week’s Mailbag, we help a reader troubleshoot sluggish engine performance he’s experiencing when his Holley carburetor’s vacuum secondaries are activated. Q: I have a Chevy 383 stroker with a Holley 600 cfm vacuum

NORWALK, OH. — Bo Butner used a .000 light to win his third Pro Stock race of 2017 on a holeshot Sunday at the Summit Racing Equipment NHRA Nationals, and extending his points lead over the rest of the class as we hit the halfway mark of the 2017 NHRA Mellow Yello Drag Racing Series