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Old 01-18-2016, 10:02 PM   #15
3500Alero
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Join Date: Apr 2009
Location: Guelph, Ontario, Canada
Posts: 158
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I think that 42's aren't really needed unless you are cammed or running more than 12psi. I have 36's waiting to go in my 3100 but I think that they may be a bit much while it is stock and under 10psi.
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2004 Olds Alero 3400 v6 15.32 @ 88.69mph Bone Stock
1999 Olds Alero 2.4 to 3500 swap (running), Ported heads. totaled by a honda
2002 GAGT 3500 swap. parting out
1993 c1500 turbo 3100 swap 5psi.
1976 Cutlass 350 olds stock for now
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