Articles written by: Jeff Smith

Jeff Smith has had a passion for cars since he began working at his grandfather's gas station at the age 10. After graduating from Iowa State University with a journalism degree in 1978, he combined his two passions: cars and writing. Smith began writing for Car Craft magazine in 1979 and became editor in 1984. In 1987, he assumed the role of editor for Hot Rod magazine before returning to his first love of writing technical stories. Since 2003, Jeff has held various positions at Car Craft (including editor), has written books on small block Chevy performance, and even cultivated an impressive collection of 1965 and 1966 Chevelles. Now he serves as a regular contributor to OnAllCylinders.

Q&A

Ask Away! with Jeff Smith: Upgrading Fuel Injectors for Better Performance in an LT1-Equipped Chevy Camaro

What would be the best injector for my 1995 Camaro? The idea is to get higher performance. Would I have to change fuel pump also? Thanks. P.B. It’s a common […]

Q&A

Ask Away! with Jeff Smith: Proper Rocker Arm Torque & Tightening

I just discovered a rocker arm on my small block that loosened up and popped off the stud. It kinda mangled the threads on the stud, so I’m going to […]

Q&A

Ask Away! with Jeff Smith: Using E85 or Octane Boosters in a High-Compression 283 SBC with a Cruising-Speed Stumble

I am an old school pepper tree mechanic, and not quite in tune with 12:1 compression ratio small block Chevys. I have a 1962 Rambler Classic with a 283 with 12:1 […]

Q&A

Ask Away! with Jeff Smith: What Does “Inches of Mercury” Mean & How Does It Measure Vacuum?

Can you give me a short explanation of what inches of mercury is and how it is measures manifold vacuum? I just don’t understand it. Thanks! J.J. This can sometimes […]

Tech Articles

2011+ Mopar Gen. III 6.4L/392 Hemi Apache Engine Guide: Bore & Stroke, Cylinder Heads, Cam Specs & More

When Chrysler announced it was bringing back the legendary Hemi in the early 2000s, it was a big deal. This new series of Hemi engines is often referred to as […]

Q&A

Ask Away! with Jeff Smith: Adjustments for an Edelbrock AVS2 Carburetor with a Slight Hesitation

I recently bought one of those new 750 cfm Edelbrock AVS2 carburetors for my 1969 Satellite with a 383 V8. It runs pretty good but it has a slight hesitation […]

Q&A

Ask Away! with Jeff Smith: Improving Fuel Economy in a Quadrajet-Equipped 350 Chevy Camaro Z28

I have a 1980 Chevy Camaro Z28 that’s in really good shape with the stock 350 and the original Quadrajet carburetor. The car is all stock. Instead of making more […]

Q&A

Ask Away! with Jeff Smith: Getting to 400+ Horsepower in an LS1-Equipped Fourth-Gen Camaro

I have a 2000 fourth-gen Camaro with an LS1 and a six-speed that I just bought. The car runs great—but now that I’ve had it for awhile, I’d like to […]

Tech Articles

2005-10 Mopar Gen. III 6.1L Hemi Engine Guide: Bore & Stroke, Cylinder Heads, Cam Specs & More

When Chrysler announced it was bringing back the legendary Hemi in the early 2000s, it was a big deal. This new series of Hemi engines is often referred to as […]

Q&A

Ask Away! with Jeff Smith: A Good Camshaft Suggestion for a Modified Chevy 383 Stroker LS6 Engine

I have a 5.7L LS6 engine out of a 2005 Caddy CTS-V that dropped an intake valve with just over 50K on the odometer. The damage was not too extensive (no […]