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The EZ's seem to have more potential than the RPM's, but you're really limited by sticking with stock offset rockers. If nothing else they have a better chamber.

I'd be looking very hard at Victors and just dealing with the offset since you're getting aftermarket rockers anyways. But it's not my car S/F....Ken M



I will partially agree with it limits your choices on which rocker arms by going with the EZ heads, but as far as performance goes, I think they are the bomb...especially for the price.

I am really impressed with the performance we have acheived with OOTB EZ1 heads so far, and we have not been pushing it. We do not run race gas, we don't launch anywhere near where we could, and we shift it well below the max, and these things run!

I would get a good set of rockers and a set of these heads and be done with it...IMHO. We have run against the guys running -1's and B1's with similar cars that generally run race gas, and we run right with them on pump gas.

'70 Cuda,...605 EFI Hemi Street Car (6.20 best pass, 1.33 60ft)
https://www.youtube.com/watch?v=WYw6RA-k5Bk (6.25 at 108.75mph from inside car)
https://www.youtube.com/watch?v=3zQEb9uxFng (6.25 at 108mph from outside car)
https://www.youtube.com/watch?v=JCvfzsC4NgM (9.9)

'66 Barracuda AWB Stretched nose Blown 440 Car in build stage

'71 Duster Drag Car 400 Low Deck 512 best 6.002 at 115.44mph
https://www.youtube.com/watch?v=Znuo3jMUXTk