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4.0L tech article.

PostPosted: April 20th, 2012, 5:11 pm
by REDxj5150
I found this pretty interesting to figure out results from all of those common 4.0L upgrades.

http://www.jpmagazine.com/techarticles/ ... index.html

I was most intrigued about the post 99' intake manifold. I wonder how much cam an engine would need in order for the 99' intake to do some good.