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Old 09-10-2020, 06:52 PM
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czar97 czar97 is offline
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Default 1972 Pontiac 350 Exhaust Size Advice (Flowmaster 40 series)

After 29 years I’m finally getting flowmaster 40 series. Wondering what size exhaust everyone would suggest. Thanks for any advice. (Stock manifolds, exhaust size, and tail pipe size).
Thanks again,
Matt

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1972 LeMans' $41 Nose Job - Father Son Project Car
350 4bbl
3.55 Richmond Gears w/ Auburn Posi
  #2  
Old 09-11-2020, 03:37 AM
todden8 todden8 is offline
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I think 2.5 is a good choice.

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Old 09-11-2020, 09:20 AM
hgiv hgiv is offline
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With stock manifolds, and probably even headers, I agree that 2.5 is good. Any larger won't help.

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