LT1 ZZX cam $150
#3
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It would really depend on what heads you use. I would assume nothing under 400 with a good set of heads. I was using a afr 190's on mine fully ported and I could keep the car straight. A really good cam pulled hard all the way to where my redline was at 6500. I think it would pull better to 7000 though. Just my thought.