EFI System Pro

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06/03/2026

Holley Performance Icons Sale is ON! 🏎️💨
Upgrade your ride for less! From June 1–21, 2026, save big on Holley’s most iconic brands.
What’s on sale?
Fuel Injectors: Terminator X & Sniper upgrades.
Ignition: HyperSpark kits, distributors, and coils.
Fuel Systems: OE/Retrofit tank modules and full EFI fuel systems.
Spark Plugs: MSD Super Conductor wire sets (stock up now!).
No coupon codes needed—just shop the site, look for the "Sale" flag, and save instantly at checkout.
https://www.efisystempro.com/holley-sale

05/26/2026

Stop overlooking your fuel injectors. From physical fitment and sizing to impedance requirements, we’ve broken down everything you need to know to optimize your EFI build.

Get the full technical breakdown at the EFI System Pro Hangout: https://www.efisystempro.com/efi-pro-hangout/general-studies/

NEW on the EFI Pro Hangout: High Impedance vs. Low Impedance Fuel Injectors — What You Need to Know?https://www.efisyste...
05/18/2026

NEW on the EFI Pro Hangout: High Impedance vs. Low Impedance Fuel Injectors — What You Need to Know?
https://www.efisystempro.com/efi-pro-hangout/general-studies/high-vs-low-impedance-fuel-injectors/
Most guides start with "what does your ECU support?" That's the wrong first question.
The real question: Does your injector flow enough fuel, in the allotted time, at the necessary fuel pressure, to meet your goals?
We break down the physics, the history, and the practical decision framework so you buy the right injector — not just the one that matches a spec sheet.

Check out this heavy-hitting setup for Brian Brooks’ 1994 Chevy Blazer K1500. We’re taking that classic 5.7L and giving ...
05/11/2026

Check out this heavy-hitting setup for Brian Brooks’ 1994 Chevy Blazer K1500. We’re taking that classic 5.7L and giving it the ultimate modern brain transplant.

By moving to the Sniper 2 with the Power Distribution Module (PDM), Brian is cutting down on wiring "spaghetti" while gaining full control over his 350’s performance.

Ready to modernize your Chevy?
See the Sniper 2 specs here: efisystempro.com/efi-system/sniper-2-efi

Check out this clean install by Todd Kollert! 🏁 He just upgraded his beautiful '79 Corvette with the Holley Sniper 2 EFI...
05/06/2026

Check out this clean install by Todd Kollert! 🏁
He just upgraded his beautiful '79 Corvette with the Holley Sniper 2 EFI system, and it looks incredible under the hood.
Say goodbye to carburetor headaches and hello to modern performance, easy starts, and rock-solid reliability.
Ready to fuel inject your classic ride? Get your Sniper 2 kit here: https://www.efisystempro.com/efi-system/sniper-2-efi

Calculating the correct injector size is the difference between a perfectly tuned engine and a dangerous lean condition....
05/05/2026

Calculating the correct injector size is the difference between a perfectly tuned engine and a dangerous lean condition. If your injectors are too small, you risk fuel starvation at high RPM; if they are too big, you’ll struggle with a choppy idle and poor low-speed drivability.

To get the math right, you need to factor in your Target Horsepower, Brake Specific Fuel Consumption (BSFC), and a safe Duty Cycle (usually 80%).

For a full breakdown of the math—including how to calculate for naturally aspirated vs. forced induction setups, check out the deep dive on the EFI Pro Hangout blog: https://www.efisystempro.com/efi-pro-hangout/general-studies/how-to-size-fuel-injectors-horsepower/

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