Tech

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Q&A

Mailbag: Rejuvenating an Old 454 Big Block Chevy

Q: I have a 1973 454 big block Chevy. It has a 8.5:1 compression, stock oval port cylinder heads, a Crane PowerMax camshaft, and Edelbrock Performer intake, and a Holley […]

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Q&A

Mailbag: An Easy Way to Make 500HP in an LS1-Powered 2002 Camaro Z28

Q: I want to get 450-500 horsepower out of my 2002 Chevy Camaro Z28. My car already has an 80mm BBK throttle body, a Granatelli mass airflow sensor, an SLP […]

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Tech Articles

How to Set-Up and Tune Holley’s Dominator EFI System

It’s no secret that aftermarket electronic fuel injection (EFI) systems are becoming more and more commonplace. It should come as no surprise however, that some of the early systems were […]

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Q&A

Ask Away! with Jeff Smith: Best Performance Upgrades for a 283 Chevy Small Block Engine

Here’s a question you probably haven’t got before in your Ask Away! segments. I have a 0.060-over 283 that is now at 292 cubic inches. I just finished the short […]

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Q&A

Mailbag: Finding Low-End Power in a Sluggish 350-Powered 1981 Firebird

Q: I have a 1981 Pontiac Firebird with a Chevy 350 in serious need of some more low-end power! It has a Holley Dominator manifold and a 750 cfm car, […]

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Tech Articles

Comparing Camshafts (Part 2): Consider Individual Timing Events When Choosing a Cam

Editor’s Note: This is the second half of an article on how to interpret cam specs to select the right cam for your engine and vehicle needs. You can read the […]

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Tech / Tech Articles

Comparing Camshafts: A History of Camshaft Specs and Choosing the Right Cam

Have you ever wondered why one camshaft makes more power than the other? Would you like to compare the behaviors of multiple cams without ever doing a cam swap? Written […]

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Q&A

Mailbag: Curing Unwanted Vibration in a 5.0L-Powered ’66 F-100 Pickup

Q: Help! I have a 1966 Ford F-100 pickup with a transplanted 5.0L from a 1991 Mustang and the following mods: Ford Performance cam (220° duration/.498″ lift), Airflow Research CNC-ported 185 […]

This is the TBSS that we’ve used on several engines during dyno testing. We’ve outfitted it here with custom brackets to mount a Holley fuel rail. The throttle body mount is a four-bolt so there are plenty of options including Holley’s affordable Sniper 92mm unit. (Image/Jeff Smith)
Q&A

Ask Away! with Jeff Smith: Building a Performance Intake Manifold for a 5.3L LS

I’ve heard there is a really good factory LS intake manifold out there for cathedral port intakes but the friend who mentioned it didn’t know anything more than that. He […]

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Q&A

Mailbag: Performing a Drum-to-Disc Brake Conversion on a ’69 Camaro

Q: I would like to install disc brakes on all four corners of my ’69 Camaro. It’s currently equipped with drum brakes, and they’re just not doing the trick. I’m […]