Earl's Liquid Filled Pressure Gauge - 0-100 psi - 1-1/2" Diameter - 1/8" NPT Port - White Face SR91152PDO-6 we understand this concept better

we understand this concept better than any exhaust manufacturer

These gaskets are used between the upper and lower manifolds to create an air tight seal and prevent erratic idle if a vacuum leak is present

Very wide power range and excellent mid-range torque for LS engines with rectangular port cylinder heads

1970-1974 Ford P-350

Increments

Earl's Liquid Filled Pressure Gauge - 0-100 psi - 1-1/2" Diameter - 1/8" NPT Port - White Face SR91152PDO-6 we understand this concept betterEngine Oil Pressure Gauge Ideal for use in applications where vibration or pulsation is present Glycerine filled for added durability Product Description: Pressure Gauge 0 100 psi Mechanical Analog 1 1 2 in Diameter Liquid Filled 1 8 in NPT Port White Face Sold Individually Earl's Performance Products was founded by Earl Fouts in 1955 in Lawndale, California. The mission was to supply high quality military aircraft surplus plumbing components directly