Yea I hear ya on the science! That is why I couldn't decide between 4.11 and 3.91. I would like to stay n/a for a while anyway and maybe some day s/c it or I may just go for a lsx build not sure yet. I'm sure eventually the 4.11 will not be enough gear. I'm thinking a cam and bolt on car maybe heads etc 4.11 will be ok.
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