GSC Power-Division Single Exhaust 23-8N Chrome Polished Valve, 29mm STD (gsc2021-01) 3515 7 (J65) 1990 Pontiac Firebird

7 (J65) 1990 Pontiac Firebird Engine: 5

long known for high-end bulletproof fuel systems

brake fluid

The OLED screen allows for easy readings from any viewing angle

and gain the ability to drive in comfort and safety

GSC Power-Division Single Exhaust 23-8N Chrome Polished Valve, 29mm STD (gsc2021-01) 3515 7 (J65) 1990 Pontiac FirebirdWhen creating our new valve line we set out to create the best performance, longest lasting valves available to the aftermarket. Using advanced 3D design and simulation software, we have created a stronger and higher flowing valve head design. We flow test prototype valve heads in the specific applications to make sure we have the highest flowing valve head available on the market today. With the materials used, we have less valve distortion at the