I haven't used the Comp Cams seals. They apparently are intended for use on as-cast (unmachined) guide O.D.'s? Do they grip the guide tightly? Many non-Pontiac engines used that style seal, and usually I'd find the seals joy-riding on the stems- no longer even touching the guides. Machining the tops of the guides for modern Viton seals (with built-in spring clamps) is a more reliable solution.
Having said all that; the Comp Cams seals might work okay for you.
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Anybody else on this planet campaign a M/T hemi Pontiac for eleven seasons?
... or has built a record breaking DOHC hemi four cylinder Pontiac?
... or has driven a couple laps of Nuerburgring with Tri-Power Pontiac power?(back in 1967)
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