Solid lifter cam.

Running a 340 built in the early 80s. .528" mechanical cam, stock adjustable 273 rockers, double springs. 4 speed car with 4.88 gear. Has countless 1/4 mile passes and lots of hard street battles. Think we've had the valve covers off 3 times!!!! Good adjusters and lock nuts on rockers, itwillhold the lash just fine