Click here to learn more about this liquidation sale. Don't miss out!

Who doesn't love a good comeback story!

Posted by Akhand Singh 08/30/22 0 Comment(s) Customer Rides,

Check out this stunning 69 Camaro powered by the Holley Sniper Stealth 4150 System built by our Friend and Awesome Customer, Larry DuBois.

Here's the story in his own words

I bought this car back in 1976 when I was 16. It is my first car. I drove it for several years until I decided I wanted to "restore" it in the mid-'80s. It remained disassembled for the next 35 years while I hauled the shell and its parts all over the country as I wasn't about to get rid of it. I didn't want to be one of those guys that say, "I had a Camaro like that, but I sold it. I sure wish I still had it."



After a few false starts in early 2000, I finally started on it in earnest in the winter of 2019. In May of 2022, I could finally drive it again after all these years. That was way too long not to enjoy this car, and I plan on driving it whenever I can, for as long as I can. It is NOT a trailer queen!



Even though the original drivetrain and 90% of the Z/28 parts were long gone, even before I bought it, I originally wanted to restore it as accurately as possible the way the factory built it. Then I decided to modify it a bit to make it a comfortable and reliable cruiser. I installed TMI Sport Seat covers for extra comfort, 17" Cragar wheels for the old-school look with a modern vibe, and slightly dropped the suspension. Along with a Tremec TKO-600, I also decided to go with EFI. After discovering, I decided that the Sniper Stealth 4150 was the system for me.




Keeping with the factory look, I retained the factory fuel system by installing Holley's in-tank fuel module system with the Hydramat pickup and Holley fuel filter. I then bypassed the mechanical fuel pump while using the factory fuel lines. I also added a Pertronix Igniter II ignition system. Larry Mazzola's 69 Chevelle gave me the ideas and the proof that it could be done. Thanks!



The engine was broken in with a carburetor and the old points distributor. But, being very familiar with Murphy's Law, I wasn't expecting much when it came to the engine's first start-up with the new EFI and ignition. I couldn't believe it started right up! I've been shaking down the car for the last 200 miles, and so far, I have a couple of questions, but I already know from past experience the EFISystemPro team will be there to help!

Larry DuBois Alamogordo, New Mexico



Are you contemplating an EFI system for your car or truck but just don't know quite where to start? Or maybe you have a good idea of what you need but would like the insight of an experienced EFI system integrator to make sure you get everything you need the first time without a lot of guessing or back-and- forth ordering. If either of these is true, you are in luck! The pros at EFI System Pro are here to help.


Simply visit and fill out the short form to receive your free EFI system and parts recommendation for your application.


Get Started Today!

Leave a Comment

Customer Reviews
Chandler B.
Scott has been very helpful and informative on guiding me through the purchasing and installation of my terminator X max system. I asked him a million questions and waited a long time to save up before purchasing the system and I have asked a lot of questions throughout the installation process. He has walked me through every question I’v
Posted 05/26/2022
Greg Chapdelaine
Fast shipping, great tech support. Don’t buy your EFI anywhere else.
Posted 04/04/2020
John Haley
Everyone raving about customer service is telling the truth! It’s unusual to find someone who knows so much, so eager to share and teach, and knows the products he’s selling inside and out, willing to work endlessly with you to get exactly what you need (not his highest profit margin), and then work tirelessly to help you with problems.
Posted 10/25/2019
William Harden
I did not buy my holley sniper from EFI Pro Systems. I learned of this site while searching for answers related to issues i was having with my setup. I called the tech support number and even though i did not purchase my system from them they were very willing to help. I had actually called to inquire as to which upgrade card i needed for
Posted 08/21/2020