Just thinking out loud here, but with the stock 1.586" installed height used by most Pontiac heads, it would be difficult to get a single spring in there to get the job done with a nice HR set-up.
Going to longer valves, aftermarket heads, and much taller installed heights, using the beehive springs set-ups in Pontiac engines wouldn't be any different than any other engine. A spring really doesn't know what engine it is installed in, it just has to have enough seat and over the nose pressure to get the job done based on the desired rpm's and total combined weight on the parts involved on both sides of the rocker arms.
I have always wanted to run a "tight lash" hydraulic roller set-up in lieu of the HIPPO solid roller deal that I'm running currently. One would think that a well made HR lifter, ran with minimal plunger travel would work well at high rpms, and even better if the components involved were lightened up some........Cliff
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https://cliffshighperformance.com/
73 Ventura, SOLD 455, 3740lbs, 11.30's at 120mph, 1977 Pontiac Q-jet, HO intake, HEI, 10" converter, 3.42 gears, DOT's, 7.20's at 96mph and still WAY under the roll bar rule. Best ET to date 7.18 at 97MPH (1/8th mile),
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