MSD Firewall Feed-Thru (Black, Red) 337008 Factory length for '55-'79 Pontiac

Factory length for '55-'79 Pontiac 350-455

The key to the system is our exclusive E-Tuner 4 app with dyno developed base calibrations

053 in Long

Brake Bleeder Catch Can

Recess hole size 4 1/2"

MSD Firewall Feed-Thru (Black, Red) 337008 Factory length for '55-'79 PontiacTo prevent voltage leaks in passenger compartment mounted coil installations, MSD designed the Firewall Feed Thru. Molded from Rynite(R) and nylon, the Firewall Feed Thru provides 1 2" of insulation to ensure that the coil's spark reaches the distributor. To prevent voltage leaks in passenger compartment mounted coil installations, MSD designed the Firewall Feed Thru. Molded from rynite a hi dielectric strength material. Features: Absolutely the best