Quote:
Originally Posted by Bosco1956
........ better changing the heads to something different? ........
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'56 heads would be your best choice. They will work best, if you can find a cam to match the flow.
Quote:
Originally Posted by Bosco1956
........ carbs off a 348 Chevy ........
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If they will bolt on, they will work fine.
Quote:
Originally Posted by Bosco1956
........ rear gear is a 3:08 ........
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Axle code is stamped near the bottom of the differential mounting flange, under the fill plug. The '54 Shop Manual decodes them, as follows:
0 = 3.07 [3.0769 = 3.08]
4 = 3.90
6 = 3.64
8 = 3.42
9 = 3.23
Finding different ratios for '54-'56 Olds/Pontiac, will take more luck than most of us have. You can PM
Blownolds, who you might also find at
eBay, or
the H. A. M. B.
Let us know how it goes.
Norm