Street and Strip Slayer: Justin Almon’s ProCharged SLP ZL550

Back in the day of the 4th Gen F-bodies, SLP earned itself a reputation as a power-house tuning company in the US. Then when the Camaro was reborn in 2009, they once again started putting their renowned touch on a batch of brand new SS Camaros. The cars got a variety of styling, suspension, and power upgrades aimed at helping it stand out from the crowd, and dominate the streets.

Justin Almon’s 2010 Camaro was one of those first SLP tuned 5th Gen Camaros, but as you can see, a lot has changed with the car since it left SLP. “The Camaro started her life as an SLP ZL550,” Almon tells us. “And now, 2 years later, it’s a 900 plus horsepower, 10-second street car.”

The hood is really the only dead giveaway that Almon's Camaro started life as an SLP ZL550.

Almon enjoyed the ZL550 as it was, but he had his sights set a bit higher. So the crew at Craven Performance in Saint Louis, Missouri, took Almon’s ZL550 and hooked it up with a fully-built Procharged 427 LSX combo.  The supercharger that came with the car just wasn’t going to cut it for the kind of goals that Almon had for the car, so Craven added a huge F-1R ProCharger to push air through the high flowing Trick Flow heads. A nitrous set up from Nitrous Express really bumps up the power of the 427 whenever it’s called for. The 900 horsepower engine is backed up by an FLT Stage 5 4L80E and a Moser 9-Inch rear end, while a set of Weld RTS wheels and Hoosier slicks get the power to the pavement.

An F-1R ProCharger and a shot of giggle gas from Nitrous Express help pump the 427 LSX's output to over 900 horsepower.

In spite of a full 10-point cage in the interior, the car is actually still very street friendly and even runs on pump gas still. That doesn’t mean that it’s still friendly at the track though. “So far, the best time I’ve ran is 10.30 at 137 MPH,” says Almon. “This year I’m going for the 9s. I just need more Seat time in the car!”

About the author

Clifton Klaverweiden

Clifton has been a car fanatic since his late teens, when he started the restoration of his '67 Camaro. He considers himself a student of automotive science and technology, and particularly loves all things LSX. And, although he has an appreciation for everything, from imports to exotics, his true passion will always be for GM musclecars.
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