There are many factors that need consideration before running that tight of clearance at that bore and stroke.Then throw in the 4-speed factor.I think you already know the answer since it is a street build and the gain of the quench benefit is certainly not worth the risk.Theoretically it is recommended that clearance should be set at .055 with all the factors,we can list many,taken into consideration.We have run race engines as tight as .038 but don't recommend it.