I've had no problems with either brass or iron guides, both street and competition. Each machinist seems to prefer dealing with one or the other, so I go with their choice.
I like cutting the guides for modern seals, but many people are happy with Pontiac's OEM stuff.
P.S.- If you should find yourself wishing you could create oil holes in your rocker arms, give me a shout. If my EDM mill happens to not be buried in clutter, I might be talked into setting it up to "burn" some oil holes.
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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)
Last edited by Jack Gifford; 07-26-2020 at 02:42 AM.
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