Solid Roller Cam and Single Plane Intake Manifold Upgrade for a 427 Big-Block - L89 Version 2.1 Photo Gallery
...That is a 68 hp and 34 lb-ft gain over our last combo. What is really nice is the fact that at no point did we lose any power or torque compared to the old combo. Now we have even more power and torque to move our heavy Chevelle and it sounds even meaner than before. Remember, we shot video of the dyno pull so make sure to visit www.superchevy.com and check it out.