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Thanks Rod
Yeah I had read that a while back, regards the treating.
I know these particular rockers are different than the I believe it was Probe stuff they used to carry or maybe still do.
Just looking at what options are out there for roller cams on stock style heads that don't require clearancing and can hold up to probably 550-600 spring pressures
The HS stuff doesn't impress me and requires being whittled on to run 1.55 springs from what I have heard.



Just FYI, those rockers will barely clear a 1.50 spring (depending on who you talk to). You will have to cut them to get a 1.55 in there.

67 Barracuda street car, 408, e85, 1.38 60', 6.44 @105.9 in the 1/8 mile, 10.19 @130.5 in the 1/4...so far....