FULL DYNO RESULTS. NITROUS, CAM, ROCKERS & INTAKE. Discounting the limited LT4, is the LT1 the most powerful factory small block ever produced? Check out this test on the OTHER small block. We run a number of different modifications on the LT1-but forgot the valve springs!! Check out the gains offered by Zex nitrous, 1.6 roller rockers, a mild Comp ca and an Accel Super Ram.