George Jets said Lots of interest on this "383 on the Dyno" thread, 12,000 views as of today. View attachment 1716264497 _______________ Here is a stock 383 4 barrel engine. Start and run, for those that want to hear what a Stock Spec 383 sounds like. Quick Start, Smooth Running, factory camshaft, 10:1 compression ratio. ☆☆☆☆☆ Click to expand...