mailbag

You’ve got questions, we’ve got answers. We work with the Summit Racing tech department to help you tackle your auto-related conundrums. In this week’s Mailbag, we’re troubleshooting an engine that’s running too hot. […]

You’ve got questions, we’ve got answers. We work with the Summit Racing tech department to help you tackle your auto-related conundrums. In this week’s Mailbag, we’re answering several questions about an Olds 350 […]

You’ve got questions, we’ve got answers. We work with the Summit Racing tech department to help you tackle your auto-related conundrums. In this week’s Mailbag, we discuss upgrading valvetrain components on a vintage […]

Q: I have a couple of problems I hope you can help me solve. I have a 440 Mopar in my Charger that shakes right after the first cold startup, but […]

Q: I have a question about a 289 V8. I have rebuilt the engine and replaced the stock heads with a set of 1968 302 heads rebuilt by a local […]

Q: I’ve found that many of the best intake choices for the Ford 351C are for the engine with 4V cylinder heads. What is the biggest difference between the 2V and 4V […]

Q: I have a 350 Chevy engine that’s basically stock but is bored .030-inch over, has flat top pistons, and an Edelbrock Performer intake and 600 cfm carburetor. I just put in […]

Q: I have a 455-cubic-inch Pontiac with a pair of cylinder heads from a 400. The compression ratio is estimated at 9.3:1. The engine was completely rebuilt by a professional engine […]

Q: I have a Ford 390 engine. I had the block re-bored and was told to use moly piston rings. When I was finished with the rebuild, the engine began to […]

Q: I own a Chevy Impala with a 468-cubic-inch big block Chevy engine. It has 12:1 compression, Crane 298-degree duration cam, oval port cylinder heads, 926 cfm Holley double pumper […]