Mailbag: Choosing a Transmission and Torque Converter for Racing
Q: I have some questions about a torque converter for my engine combination. The car is a 1981 Malibu that weighs 3,500 pounds. It has a 388-cubic-inch small block with 11:1 […]
Monday Mailbag: A Basic Introduction to Ignition Timing
Q: I‘ve owned a few vehicles, but I’m new to engine tuning and automotive mechanics in general. What can you tell me about ignition timing? In particular, how does advancing or […]
Mailbag: Properly Installing Battery Disconnect Switches
Q: My new battery disconnect switch has two large terminals, and two smaller terminals. How should I hook it up? A: The large terminals should be connected (in series) to positive battery […]
Mailbag: Understanding Internal Balance vs. External Balance Chevy Flexplates
Q: The 350 engine in my 1990 Chevy truck needs a flexplate. Some guys tell me it’s internally balanced, while others say it’s externally balanced. I don’t know which flexplate to […]
Mailbag: X303 or E303 — Considering Valve Clearance When Selecting a Ford Cam
Q: I have a 1989 5.0L Mustang, and I recently purchased a Ford Performance X303-grind cam for it. I have some questions concerning valve clearance. Can I run stock pistons with this […]
Mailbag: The Mystery of the 4,000 RPM Power Drop-Off
Q: I have a Chevy 350, bored .060-inch over. It has TRW forged flat top pistons, 230-degree duration (at .050-inch lift)/.560-inch lift COMP Cams roller cam run straight up, and iron […]
Mailbag: Tracking Down the Source of Engine Knock
Q: I built a 350 engine using parts from Summit Racing. At about 3,000 miles the engine would make a clacking noise at startup, but only when the engine hadn’t been […]
Mailbag: Intro to Fuel Flow Ratings, Fuel Pressure & Fuel System Basics
Q: I have a street/strip 1969 Camaro with a 427 big block that puts out about 475 horsepower at 6,000 rpm. The engine has an 800 cfm Holley fed by a […]
Mailbag: What Causes My Engine to Shake After Cold Startup?
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 […]
Mailbag: Choosing Fuel Lines for a Street Rod Build
Q: I’m getting ready to plumb my ’33 Ford with new fuel lines. What type of line should I be using? A: It’s no secret, the formulation of pump gas has changed […]