InchUp

iTrader: (2)

Here's the cam I was talking about. It does pretty well in an S10 but I'd say for a 1/2 ton truck you'd only end up hurting yourself with the loss of low end.

http://store.summitracing.com/partde...8&autoview=sku

00Silv4.8

iTrader: (10)

go to a local truck recycler's or like a junkyard specializing in trucks (or anything with an F-body or something) and rip that motor out for probly a G or less. It'll be worth the down time of taking it slow, pulling the motor urself and doing everything right then shoving money in a V6. Unless its a Grand National I'd say **** it. talk to 2005Silverado, he did a 4.3 to 4.8 swap in his 05 M5 Silv not too long ago

silverado4x4

you can get more low end by removing the damper from the throttle plate or you can get one off ebay for around 40.00 also if you have 2 cats and 4 o2 sensors you can put true dual exhaust on it helps alot the throttle plate makes a quick response lot of low end gain