How much HP would a Chevy 267ci v8 sbc make with a 4bbl carb and headers with dual flowmasters?
May 24, 2009 · Print This Article
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?
By: franklint06
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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.
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very poor breathing smog era engine..low compression bad cam..poor heads
with a proper [modern] intake manafold…600cfm carb you gain 10 hp,,,duel mufflers another 10 hp…if you use headers gain another 10hp…another idea is get a new distributer for more total and faster timing..
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Headers and exhaust will gain you 20-25 HP.
Intake and carb 15 HP
So put you around 155 HP or so