Josh McCormack Conquers The Ultimate Callout Challenge
A new U.C.C. champ is crowned, ODSS drag racing from Indy, a fresh Duramax horsepower record, and the latest in CP3 technology.

The Ultimate Callout Challenge came down to the wire this year, with everything on the line for the finale event: Sunday’s sled pull. When the dust finally settled in Indy, Josh McCormack and his third-gen Cummins survived the 3-day torture test and collected the most points. Josh ran a Sixth Place, 5.805-second ET during the drag race portion on Day 1, but came roaring back on Day 2 with a First Place effort on the dyno. He would be the only competitor to crack 3,000 hp, with a jaw-dropping 3,108hp rip on the rollers. His final performance yielded a Third Place distance in the dirt (318.88-feet), which in terms of points put him out front of Second Place finisher, Chris Patterson. Josh traveled an incredible 2,100 miles (each way) from California to become this year’s U.C.C. King. Stay tuned in to Green Handle for a full U.C.C. recap in the days ahead.
At The ‘Strip
Once Again, Outlaw Diesel Revenge Brings Top-Tier Drag Racing To Indy

Running alongside the Ultimate Callout Challenge, the Firepunk-presented Outlaw Diesel Revenge event brought well over 100 racers to Lucas Oil Indianapolis Raceway Park. Mattie Graves, piloting the twin-turbo Duramax-powered Hollyrock Customs rail to repeat low-4-second blasts, earned the win in Top Diesel. Trading in radials for a big set of slicks, Nick Bell’s Wagler CX400-equipped second-gen stole the show in Super Diesel (shown). Paul Cato took top honors in the new Pro Truck category, while Brett Marcum got the W in 5.70 Index. In 6.70 Index, Chris Naudain proved unstoppable, as did Emanuel Yoder in 7.70 Index and Jordan Blackard in ET Bracket. And as for the inaugural Seventy 2 Fast class, Austin Yingling swept in from Maryland, turned in a string of low-6-second passes, and ultimately collected the trophy.
On The Dyno
New LML Duramax Horsepower Record

All In Truck Performance and its customers have been bringing the receipts lately. Michael Carrasco’s LML Duramax-powered Silverado represents one of the more impressive units in the AITP fleet. Strapped to the Northwest Dyno Series’ SuperFlow chassis dyno over the weekend, Michael’s nasty Bow Tie laid down an impressive 1,564 hp—a new horsepower record for the LML platform. This is the same full weight, full interior crew cab Chevy that ran a 9.81-second quarter-mile (at 141 mph) last fall and made our 2024 Record Setters list. Michael’s compound turbo’d LML has also been 6.30s through the eighth-mile.
On The Test Bench
S&S Spins A CP3 8,500-plus RPM!

First introduced back at PRI, S&S Diesel Motorsport developed its Ordnance 650 CP3 to move some serious fuel volume (650 lph at 6,000 rpm). However, recent durability testing performed by S&S’s Andrew Stauffer confirmed that the company’s high performance pump can handle engine speeds much higher than that. With a straight face, Stauffer discloses “We’re gonna crank her up until either we can’t go any faster, or something lets loose.” He then proceeds to run the Ordnance 650 up to an incredible 8,577 rpm (video here). To be sure, diesel engines don’t spend much time operating this far upstairs—but if one needs to be this is definitely the pump to have.
Coming Soon
The Latest CP4 Solution For Your 6.7L Power Stroke

You’re looking at a belt-driven CP3 on a brand-new, 2025 6.7L Power Stroke—and the CP4.2 is completely gone. That’s right, this high-pressure fuel pump (an Exergy unit) is part of Snyder Performance Engineering’s new Cpreme CP3 conversion kit for 2011-present Ford’s. The company unveiled its system over the weekend at the Ultimate Callout Challenge. A 100-percent factory replacement system for the 6.7L Power Stroke, it retains all factory fuel lines as well as the vacuum pump (which decreases crank gear load) and also eliminates the pulse timing issues associated with twin pump setups. Built by SPE, the Cpreme CP3 Conversion kit will feature the Exergy Performance pump of your choice, with no PCM recalibration required… They start shipping out late summer.
Written by Mike McGlothlin