Allstar Performance Base Plate Insert 1.400" - Set of 4 3550224-156- S 4 to 8 psi

4 to 8 psi

1992-1995 GMC Yukon

support up to 2000 HP

1/8 in NPT Female Outlet

It provides excellent energy delivery to the spark plugs

Allstar Performance Base Plate Insert 1.400" - Set of 4 3550224-156- S 4 to 8 psiTapered inserts are machined to be within . 002" for precise tuning. Inserts feature a step to simply drop into spacers and have sizes engraved on each insert for easy identification. Sold in a set of 4. Specialty items for the Shop, Trailer and Track. The Allstar Performance brand offers thousands of hard to find, specialty items that cover many segments in the performance aftermarket. For over 30 years, customers worldwide have come to rely on the