I have a 4.4L and i added a new intake manifold (taller than original). Instead of the original 2bbl carb i put on a 600cfm 4bbl carb. I also added tall valve covers. New oil pump and high flow fuel pump. Also a cowl hood for better air flow. How much horsepower will these upgrades add to my engine ? Thanks
the only performance mod you did was a new carb..... probably not much
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