Educate me on 5.9 Magnum Roller Rockers

dartfever said

Unless you are looking to increase the ratio, I'd spend your money elsewhere. If you are at .506 lift with your cam now, and should be 1.6's with the magnums, going to 1.7's might require some work on the heads to accommodate the higher lift of .537.

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Not really looking to go more lift, just less friction. Already using roller cam (Comp) and 1.6 ratio rockers (Stock) which work very well up to 6200 or so. Just looking to free up some extra HP if I go roller rockers. Yes? No? Also looking at possible E85 conversion. I heard from local Drag guys they are getting 30-40 RW HP jumps on E85.

My combo works great, but looking for a bit of an edge for next season racing SCCA CAM Class.