again i think the 3.8 pulley is 2 pounds of boost. people run 3.2 pulleys to achive 8-10 pounds of boost. and elevation might have a little to do with boosting, or building boost. thiner air and all. i boost harder when its colder. does your boost bar go all the way up? if so then your problew getting full boost. mine wont see full boost till i get over 4500rpm

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white 04 comg G gtp. wizair and pacesetters
personal best 14.1 97mph 2.1 60"