In a recent video, Richard Holdener conducts cam testing on an 8.1L big block engine at Westech Performance, focusing on how to enhance horsepower and torque for towing. The testing addresses whether a carburetor can outperform EFI in terms of power gain for these engines, which are known for their responsiveness to camshaft upgrades and affinity for boost. The video explores key questions about performance modifications: how much power a cam swap can yield, the worth of a Dart dual-plane intake, and whether cam swaps affect idle quality.

Holdener tests a new budget-friendly Stage 1 cam from RHP/Elgin against the popular ZZ502 cam, along with comparisons between a Dart carburetor intake and an Edelbrock 850 carb versus an EFI intake. The results showcase the potential for adding 30 horsepower and 30 lb-ft of torque via these modifications, catering to those seeking a robust tow rig solution. Viewers can access full dyno results and purchase the new cam at RichardHoldenerPerformance.com. The video serves as a valuable resource for enthusiasts interested in maximizing their 8.1L’s performance affordably.



Source: bangshift.com