Recent Posts

Mailbag: Why Did Ford Change the Firing Order on the 5.0L 302 H.O. Engine?

Mailbag: Why Did Ford Change the Firing Order on the 5.0L 302 H.O. Engine?

Q: I’m building a Ford 302 engine, and I’m looking at camshafts. I’m curious—why did Ford change the firing order on the 5.0L (302) HO engine? A: This question gets […]

This is the business end of the Holley HP ECU. The main harness assemblies plug into the two ports on the left (they’re designated J1A and J1B). The main power harness hooks up to the port on the right. The little blue port just left of J1B is the barometric pressure sensor (no hook up is required). (Image/Wayne Scraba)
Product Profiles

Holley HP EFI System Brings Pro Stock & COPO Performance to the Masses

We’ve taken a good look at many of the Holley (and MSD) fuel-injection systems available. They range from the basic, to over-the-top, in terms of function and capability. … You […]

CT6 V-Sport engine. (Image/Cadillac)
Automotive & Aftermarket News

Cadillac to Expand V-Series Performance Lineup with 550-HP Twin-Turbo CT6 V-Sport

General Motors is growing its V-series performance subbrand beginning in the spring of 2019 when it releases the new CT6 V-Sport, which will be fitted with a Cadillac-exclusive 4.2L Blackwing […]

(Image/ - super_sonic)
LS Engines

L99 6.2L Engine Specs: Performance, Bore & Stroke, Cylinder Heads, Cam Specs & More

Mechanically similar, General Motors’ LS and LS-based Vortec engines wound up on almost every branch of the GM family tree: Chevy, Pontiac, GMC, Cadillac, Buick—heck, even Saab, Hummer, and Isuzu got some […]

(Image/Summit Racing Equipment)
Tech / Videos & Galleries

Video: What to Look for When Selecting a New Clutch for Your Vehicle

There’s much to consider when replacing or upgrading a clutch in your car or truck. Today’s video is going to clarify anything you might be confused about, and help you […]

This is an image we pulled off MSD’s video on rotor phasing to show how an excessive rotor gap can make the spark jump too far. This will show up as all kinds of problems that can be easily fixed with an adjustable rotor. (Image/MSD Performance)

Ask Away! with Jeff Smith: What’s the Best Rotor Tip and Terminal Spacing for my Ignition System?

I have a question about the optimum distributor rotor tip and terminal gap. Modern replacement parts for our classics are all over the place, either in terms of length, cap […]

Featured Vehicles

Lot Shots Find of the Week: 1976 Plymouth Trail Duster

Every once in a while, we stumble upon a Lot Shots feature in which the story behind the car is way more interesting than the car itself. Not saying a […]

How to Use Brake-Bleeding Tools to Save Time and Money
How Tos

How to Use Brake-Bleeding Tools to Save Time and Money

One of the most troublesome jobs in hot rodding or racing is brake (or hydraulic clutch) bleeding. Historically, the common method for bleeding brakes has been to have one person […]

Photo Gallery: 6th Annual Molto Bella Auto Show

Photo Gallery: 6th Annual Molto Bella Auto Show

AKRON, OH. — Northeast Ohio is a hotbed for car collectors. The annual Molto Bella Auto Show, held this past weekend at the historic and picturesque Stan Hywet Hall and Gardens […]


Mailbag: Budget Performance 351W Upgrades for a 1969 Ford Mustang Mach 1

Q: I have a 1969 Mustang Mach 1 that I’ve owned for 25 years. It has a 351 Windsor engine and a four-speed transmission. I’d like to build it up […]