Mailbag: How to Improve Highway Mileage in a Vintage Hot Rod
You’ve got questions. We’ve got the answers—the Summit Racing tech department tackles your automotive-related conundrums. D.L. Kansas City, KS Q: My trusty 1936 Plymouth 4-door has a .060-inch over, 350 Chevy with an RV cam and a Holley 4-barrel. I’m also running a Powerglide transmission and a stock 1980 Cutlass 10-bolt rear end. Should I change the
Stay Connected