I have a stock (except for a mild cam) 360 Magnum in my '72 Valiant with a Vortech V-1, S-Trim centrifugal supercharger on it and have always run 10 pounds of boost with no issues... Here is the Chassis Dyno sheet for it (I use a Snowperformance Boostcooler with pure alcohol in the reservoir) and no intercooler.
Car runs low-to mid 11's at 118mph at 3340 pounds (no driver weight.)
