Yeah, may do both.
Regearing would help more on the low end than @ the top. Truck has plenty of power under 50mph (Breathless performance package, powerflash programmer, extreme flow exhaust). Its driving 70mph in a 6,000 lb brick with a 7,000 lb trailer up hill that its lacking. Needs more horses for that Supercharging now, trade for duramax desiel in 2006.
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