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AF64-4029S
The higher pressures can be obtained with either a installing a manual boost controller or a mac valve solenoid
AR644-4000
0 Thread X 4
Race TypeSuit Big Block Chevy 396 - 454 Retro- Fit for Early Model Blocks
Race Extreme Tripple Valve Springs CO26082-16 Sensors AF64-4029SRace Extreme Tripple Valve Springs1. 683" O. D With 382 lbs @ 2. 100" Seat Pressure CO26082 16 26082 16 RACE EXTREME VALVE SPRINGS Race Extreme Valve Springs are for the serious racer because they offer increased stability and endurance due to enhancements added during the finishing process. These are the best choice for the roller cam customer with higher lift and RPM in mind. These springs must be recommended with valve, retainer and keeper weights
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