Testing the 273 on the dyno....
RustyRatRod said
I thought "Power Pack" was a version of the Chevy 283.
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Yep, a Late 50's head you would see in the belairs. Like '58
Brick with a point in the middle is the boss on the ends. Lol they right up there with them ram horn manifolds..lol novelty but junk for power
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