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Old 10-13-2019, 11:08 PM
Jack Gifford's Avatar
Jack Gifford Jack Gifford is offline
formerly 'Pontiac Jack'
 
Join Date: Dec 2004
Location: Phelps, NY 14532
Posts: 10,182
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A similar situation I had once was due to a tiny crack in the high spot of the steel line over the rear axle. With tank full it didn't leak enough to ever see a spot on the ground. With fuel level lower than that spot, the pump would just pull in air.

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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)