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Yeah, I got rockers too....and when do you really need roller rockers? Last engine used a set of old Isky nodular iron non rollers with a .660 lift roller cam and ran it 7300. No issues. I've also seen dyno tests where it showed no difference between roller and non roller rockers. Now with cams bigger than that, rollers will usually help relieve side loading on the guides. After 300 passes, my guides showed some wear but nothing excessive and the rockers look good and can probably use them for another season...plus I found a new set at a swap meet for 100 bucks!!