How much HP would a Chevy 267ci v8 sbc make with a 4bbl carb and headers with dual flowmasters?

November 10th, 2009 | by admin |
franklint06 asked:


How much HP would a Chevy 267ci v8 sbc make with a 4bbl carb and headers with dual flowmasters?

They were made from 79-82.

Stock with a 2bbl it says 120 hp and 215 ft/lbs torque… So how much hp and torque would it make with a 4bbl estimated?

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    1. 3 Responses to “How much HP would a Chevy 267ci v8 sbc make with a 4bbl carb and headers with dual flowmasters?”

    2. By 12pleze on Nov 11, 2009 | Reply

      about 5-10 more. a 4 barrel does not give more HP as sometimes as this application probably less if you did not put headers with mufflers.

    3. By pedro7of9 on Nov 12, 2009 | Reply

      For more total and faster timing.

    4. By chevyraceman_383 on Nov 14, 2009 | Reply

      Headers and exhaust will gain you 20-25 HP.

      Intake and carb 15 HP

      So put you around 155 HP or so

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