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Old 06-01-2020, 03:20 PM   #12
JSeery
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Default Re: Rear exit manifolds for flathead 39 Ford

Quote:
Originally Posted by JayChicago View Post
I have a lot to learn. Why to do you scoff at Drakes statement? Doesn't dual exhaust improve delivered horsepower?
Dyno tests show minimal hp gains with exhaust modifications on semi-stock engines. The Drake statement is "...the single most effective way to increase horsepower...". That is a false statement. I like headers on a flathead, I like the look, I like the sound, but it is NOT the single most effective way to increase horsepower, not even close.
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