Thread: Rear exit manifolds for flathead 39 Ford
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Old 06-01-2020, 03:20 PM   #13
Mr 42
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Default Re: Rear exit manifolds for flathead 39 Ford
According to the old magazines

Dual exhaust 10 hp
Dual carbs 10-15 hp
High Compression heads 10-15 hp

All is bolton ;-)
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