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Ted,
2" headers and exhaust are only gaining 25rw on the PD cars? Same question with the CAI's. I would figure that a PD car would benefit the most from a CAI. I understand the stock one works great on the stock motors but Roto Fab was able to make some gains there. Would you expect those gains to be multiplied on a PD car?
I am guessing I will order the ZL1 elbow for my LT4 conversion kit and use the stock filter box until something is available from the after market.
Joe,
My LT4 kit will be going on a totally stock motor first in stock configuration. Then fuel, headers and CAI. It probably won't be for a month or so though.
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