You can still make 500RWHP NA with a 6.0 and worked 243/799 heads. My old setup ran a best of 12.19 at 113mph and weighed in at 4600lbs. The calculators put me around 505rwhp. It consisted of LS2/LQ9 block, 243/799 ported and polished heads, 232/242 cam, TBSS intake, 42lb injectors, 90mm edelbrock TB, PRC dual springs and hardened pushrods, Heads were decked to 61cc chambers and bumped the compression to 11.2:1. This was also through a 4l80E with a 3200 PI convertor and 4.10s. Not really ideal for the track. This was also during the heat of the summer 100* plus. So I'm sure with some cooler air it would have been in the high 11's on motor.



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