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402 Chevy Ls2 Short Block Engine Build Zex Perimeter Plate
402 Chevy Ls2 Short Block Engine Build Zex Perimeter Plate
In typical CHP fashion we left no options unturned in search of additional horsepower. We used a Holley 950-cfm HP for our baseline pulls and made 589 hp and 534 lb-ft. As testing progressed, we stepped up the cfm and fuel demands by using a Holley 1,000-cfm HP and added a 1-inch Wilson spacer, which then bumped power to 608 hp and 542 lb-ft. However, for all the beans, we topped it off with a Zex perimeter plate. Being conservative, we tested the waters with a 150 shot and produced 744 hp and 763 lb-ft. We didn't stop there. Stepping up to a 200 shot rang the bell with 780 hp and 801 lb-ft! View Related Article
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