I have a 350 small block the manifold was cracked no water in motor crack was just on water jacket however my setup is different than one purchased mine had 2 gaskets and a steel shim between manifold and riser the step I bought only has one gasket for that spot I was told my setup was to restrict water flow and I didn't need that only to use one gasket no shim which cuts off the water jacket completely I need to know with step up to use please help
350 small block
Merc 228
1981
350 small block
Merc 228
1981