14mm Thread - .460 in Reach - Tapered Seat - 2 Pack of 0576S-4 (8 Spark Plugs) Firebird BMR springs are manufactured from

BMR springs are manufactured from chrome silicon high-tensile spring wire

Pro-Flo 1000 Series

Edelbrock is now offering a replacement unit

These converters perform best when paired with stock to modified engines up to 350hp/350 ft-lbs of torque

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14mm Thread - .460 in Reach - Tapered Seat - 2 Pack of 0576S-4 (8 Spark Plugs) Firebird BMR springs are manufactured fromACCEL Shorty Spark Plugs are made with a copper core which is a better conductor than platinum and iridium. They deliver a stronger spark especially in high performance applications where high combustion pressures are present. Copper is much better at dissipating heat than other materials which lessens the chance of a misfire. ACCEL Shorty Spark Plugs are gapable allowing you to open the gap exposing a larger flame kernel or close it if needed for