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Re: Yet another GMC build
Really wanted to make sure my tune was safe for the engine so I had it dyno tuned this morning. The verdict…
605 hp
656 ft lbs.
I think it has more than enough power now. My poor 275/40zr18 tires agree. I had backed down to 10lb wastegate springs because I was afraid to lean out up top. I’d rather give up some power than burn it up at 12lbs boost.
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