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Is anyone familiar with performance parts for these engines? Thats specifically what i need help with dialing in at this point
For almost about the same money that you would dump into a remanufactured 4.3 long block you could put a 4.8 or 5.3 LS. It would cost more to build up the 4.3 than it would to do an LS swap and you would make more power with a Ls swap.
 
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