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These Speedmaster EFI fuel pressure regulators give you total control of your fuel pressure settings
and 21 circuit harnesses
Small Block Chevy heads are available with Straight or Angled sparkplugs
Don't get stuck trying to replace a leaking steel freeze plug behind a motor mount a year or two from now
To remain street legal with a square bore carb
Chevy SBC 383 ci 6.0" 4.060" 1.125" 0.927" Flat Top Forged Pistons These Speedmaster EFI fuel pressureSpeedmaster 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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