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I did not have a problem in the ~1500 miles I ran the factory box with the Hemi pump. Quite a few guys do it.

The 'on paper' concern has been discussed. However I do not recall hearing of anyone who had an issue with it. Maybe someone will chime in?

Emil runs a lower pressure pump from a different application. Should be a good alternative.




Keisler's Cuda had a 6.1 pump with a Firm Feel box. It spit out at least 2 pumps and at least 1 box started leaking. He probably put 10k+ miles on it, so it sounds like it might take some time to see the problems