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· Premium Member
36,602 Posts
with a 99 up and bolt ons along with pp heads/intakes and a nice cam set up you can see 230-250rwhp and tq with a 4.2 ALOT MORE nearly 290rwhp and tq I would say. if you have a automatic..... lower numbers..... Ill let you know as soon as i get my stuff installed :) may be a bit though :(
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