I am restoring a 1970 440 magnum, and am wondering which rocker arms to purchase. I have used the Mopar Performance rocker arms for decades, but have been only able to purchase the RIGHT(P4529476) side. The LEFT(P4529477) are nowhere to be found. I am placing an ad in the WANTED section, also. There are other brands made by Elgin, and Sealed Power, and am wondering if anyone has had good luck with aftermarket. How do they compare in ratio and side clearance? Thanks


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