2-1/8 Headers on '68 Coronet

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Re: 2-1/8 Headers on '68 Coronet [Re: AndyF] #3077887 09/16/22 05:24 PM 09/16/22 05:24 PM
Joined: Dec 2005 Posts: 11,749 Fulton County, PA C CMcAllister Mr. Helpful
CMcAllister Mr. Helpful C Joined: Dec 2005 Posts: 11,749 Fulton County, PA	I used 2 1/8" for the last set I built - 900HP 550+". 7K. And I used a smallish merge collector. Picked it up over what was on it. Unless that will regularly see 5-6000 RPM, 2" is too big. The trend is smaller with port matching the headers to the heads as well. Velocity. If the results don't match the theory, change the theory.

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