I would not be surprised to see 600 with a 472 batmo at all on stock gear bro. I know the stock turbo and CP3 become a limiting factor at the 600ish range but if you are getting it to light without draining rails or draining them too badly I bet you are pushing over 600 or right at it.
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08 Chevrolet 2500HD Z71 4x4
Duramax/Allison
EFI by IdahoRob | Flo~Pro 5" turbo back | Nfabs 6 step
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