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  1. low end power options?

    164 & 168 (1991-1995)
    so i have a 91 164B US model and im curios as how to get more power on the low end mainly but all around as well. like i know of the chips that whats his name sells but what other options are there cause im curious what other people have done like ive heard of 3.0 to 3.8 conversions but i dont...