NGK Laser Iridium Spark Plug 10 mm Thread 0.749 in Reach Gasket Seat - Stock Number 7556 29061BL Hydraulic - High Energy: Performance

Hydraulic - High Energy: Performance with slight rough idle in 396

1977-1978 Ford LTD II

RPM Air Gap

Allstar Ranger V8 Conversion

brass seat and check ball

NGK Laser Iridium Spark Plug 10 mm Thread 0.749 in Reach Gasket Seat - Stock Number 7556 29061BL Hydraulic - High Energy: PerformanceProduct Description: Spark Plug NGK Laser Iridium 10 mm Thread 0. 749 in Reach Gasket Seat Stock Number 7556 Resistor Sold Individually With over 80 years of automotive expertise, we are driven by extreme dedication to performance and quality. From OEM to aftermarket, our people push the boundaries of innovation to bring the latest technologies to market under the NGK and NTK brands. Since 1936, NGK Spark Plugs has been the world leader in technology,