Looking for some Hemi help...

johnparts said

The lifters with the MDS holes are very weak and will float under any size cam other then stock. They need to go if changing the cam and not using MDS

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I have to disagree. I have put camsin countless lx's with the mds still active, and they have not had any valve float.

but to answer martins question about the carb setup yes you will need to change them.