Headers vs. Exhaust Manifolds ~ 'Let The Debate Begin'

Brutini,

What 'OK Kustom Headers' proved on a 1971 Camaro Z-28, with all
stock components.

They gained {+14 Horsepower} and {+21 Ft/Lbs. of Torque}

Gross Horsepower

> The 350 was Factory-rated at 330 HP @ 5600 RPM's.
> Torque was 360 Ft./Lbs. @ 4000 RPM's.

After the Headers were installed they went to 344 HP @ 5500 RPM's
Torque went to 371 Ft./Lbs. @ 3800 RPM's

See the Torque > 11 Ft./Lbs. higher at 200 lower RPM's.

The Horsepower {+ gain} of the Headers, was thru the 'stock' Mufflers.