Distributor Mechanical Advance Curve Kit Fits 1969-1974 GM Delco Distributors with 2 Weights Mr Gasket Engine and Components - Engine Internals 1991-1992 MJ Comanche

1991-1992 MJ Comanche

Interchange: J0985187

Springs are added to the upper and lower hoses for superior durability and prevents hoses from collapsing under pressure

A removable

500 inch Outer Diameter For GM 8

Distributor Mechanical Advance Curve Kit Fits 1969-1974 GM Delco Distributors with 2 Weights Mr Gasket Engine and Components - Engine Internals 1991-1992 MJ ComancheOne of the best, and sometimes missed tuning tricks is not to just optimize your initial timing, but to bring in timing advance more quickly than the stock distributor can allow. Bringing timing more quickly than stock can provide substantial increases in both torque and horsepower depending on your combination. This is done by changing the springs under the cap. This kit includes three sets of springs which can be used in different combinations to