Re: Horsepower?
With that small of a cam, I'd say 325-350 maybe. Last 454 I built was similar, but had more compression and cam, that was roughly 375-400....
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2000 GMC CCSB 454/4L80 6” lift SAS
1999 Chevy CCSB 454/NV4500 6” lift
1999 GMC Yukon 350/4L60 4" SAS
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