Mailbag: LT1 Corvette Intake Upgrade for a GM L83 LT Engine
Q: I have a Gen. Five, LT-series 5.3L L83 engine that’s going into my 1975 Chevy Monza. The factory intake manifold is too tall to clear the stock hood, so […]
Ask Away! with Jeff Smith: How to Install a Bypass Fuel Pressure Regulator on an EFI System
I’m building an LS engine to put into an early Chevy pickup and I’ve got a fuel delivery system question. I’m running one of those new Holley Sniper aluminum fabricated […]
How to Set-Up and Tune Holley’s Dominator EFI System (Part 1)
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 […]
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, […]
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 […]
Mailbag: Recommendations for Putting a ’51 F-1 Pickup Body on a Ford Bronco Chassis & Converting EFI to Carb
Q: I own a 1986 Ford Bronco 4×4 with a 302 V8, electronic fuel injection, and a C-6 automatic transmission. The body is banged up and rusted beyond repair. I […]
Ask Away! with Jeff Smith: E85 Pump-Gas Additives—Not Ethanol—Cause Corrosion
Hi, I was wondering if you could help answer a few questions and doubts I have about moving forward with my E85 build. I know there’s a lot of hype […]
EFI 101: Mass Air vs. Speed Density — What They Are & Which is Best for Your Ride
If you’re researching electronic fuel injection (EFI) systems, you’ve probably come across the terms speed density and mass air flow (MAF). These are the two most prevalent types of fuel […]
Mailbag: The Math Formula for Determining Carburetor Size
Q: I am in the process of rebuilding my small block Chevy and am looking for the formula to figure out the proper size carburetor. Do you know it? If […]
Ask Away! with Jeff Smith: How to Build a Custom Fuel Line for EFI
I’m building an in-tank fuel pump for a fuel injection conversion in a ’69 Nova with a small-block. I have no experience running lines for relatively high pressure injection stuff. […]