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Re: cammed 4.3 dyno numbers
its also got underdrive pulleys, bigger throttle body without that stupid restrictor thing, full exhaust, cold air intake, shift kit, 373 gears, and a true trac. but basically just a cammed 4.3 with bolt ons.
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2005 gmc sierra- 4/6, t56, cammed 5.3. 4.10, big bars, and brakes.
sounds good
1964 c10-283 powerpack, 3 on the tree 
2004 corvette- lowered, borla, tuned. slow 
my old girl
1966 c10- 305v8, t-5 sold
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