1.72RR's & SVO Valve Springs = 6000RPM On A Stock 5.0!!!

[BowTie Eater 5 Liter]

Ok, the question I have for all of you is about something I read in Muscle Mustangs & Fast Fords May 2001 issue under the ask Bernie Colum, it says with SVO valve springs(#m6513-a5) & 1.72 roller rockers "then rpm to 6000 with ease" well, if this is so, I think that will be my first mod, but anyone ever herd of this before? I guess i can trust this information.

Anyone know what kind of 1.72 roller rockers to get to fit the stock heads??? ( if you have the part # I would aprecciate them)

Thanks....

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1988 Mustang GT, T-5
3.08's, No Smog Pump (Shorty Belt), Dumps At The End Of Stock H-Pipe, K&N Air Filter (Stock Air Box), Removed air silendcer), 198.9 rwhp @4200 (235 Motor!!), 285 lbs-ft @2900 (336 Motor!!!).
My Stang
My Site (Not Done Yet)