Chevy SBC 350 IMCA MODIFIED Mild Steel Exhaust Headers - RAW The increased output of this

The increased output of this self-contained ignition easily outperforms stock ignitions and helps to smooth out the power band from idle to high RPM

They produce a simulated trigger signal that fires the ignition just as if the engine were running

Adjusting the rear band is crucial for optimizing shift quality and transmission performance

Speedmaster ignition modules will show you the benefits of greater throttle response

Fits big block Chevy rectangular port cylinder heads on standard deck blocks

Chevy SBC 350 IMCA MODIFIED Mild Steel Exhaust Headers - RAW The increased output of thisIncrease your horsepower and torque for your ride just bolt on these Speedmaster headers! These headers are designed with 3 8 in. thick laser cut flanges and mandrel bent primary tube. If your vehicle is using aftermarket components, parts from other applications, or custom altered parts, then it is the installer's responsibility to verify fitment.