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To remain street legal with a square bore carb
These Speedmaster EFI fuel pressure regulators give you total control of your fuel pressure settings
reduce stretching and prevent the belt from slipping
Speedmaster shirts are the perfect way to let everyone know where you go for high performance aftermarket parts and accessories
Chevy SBC 383 ci 6.0" 4.060" 1.125" 0.927" Flat Top Forged Pistons To remain street legal withSpeedmaster Forged pistons are made from 4032 aluminum alloy for quieter operation and reduced piston to wall clearance. Up to 20% lighter than traditional forged pistons that eliminate harmful stress concentrations for superior strength. Specifically designed for naturally aspirated or moderate nitrous applications.
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