If you are or have had oil leakage after full throttle bursts due to too much crankcase pressure, i found the solution.
I previously had a Scott Drake repo valve cover breather & was getting oil seepage from valve cover areas & have heard of oil seeping into the distributor on non DS11 distributors from other owners.
I installed a Spectre breather 4282 on the oil fill tube.
Since then no problems from excessive crankcase pressure.
I previously had a Scott Drake repo valve cover breather & was getting oil seepage from valve cover areas & have heard of oil seeping into the distributor on non DS11 distributors from other owners.
I installed a Spectre breather 4282 on the oil fill tube.
Since then no problems from excessive crankcase pressure.