Interesting stuff. Thanks.
The article I read was an interview with Man-A-Fre's owner. I was surprised at the amount of modification made to 2GC carbs- including major downsizing of main jets, down about 8 numbers from normal. Any chance your 2GCs weren't properly modified? The dyno results in the article showed a good power increase over the Sprint 4-bbl setup.
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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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