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Old 11-23-2018, 06:06 PM   #9
Jim Hanig
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Join Date: Aug 2006
Location: Pukwana SD
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Default Re: Lets talk headers

Quote:
Originally Posted by Mike Pearson View Post
I have 1 7/8 straight with 3.5 inch collectors on my 327 275/295 combo running SS/IA. Runs Ok but I think a smaller header would help. 1 3/4 step would most likely be better. Maybe even 1 5/8.
Mike on my 327 250 hp i have 15/8 13/4 3 " I tryed 13/4 to 1 7/8 3.5 moved peak power up but lost 10. I think 1 3/4 1 7/8 with 3 1/4 collector. my 250 is the small valve eng.
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