318 4 bbl and intake upgrade

Back in my young and dumb days I stuck a performer rpm (non air gap) a Holley 3310, with a stock 360 cam (yanked from a truck at a junkyard!) in/on an otherwise stock 318 bottom end with 110,000 miles on it. Turns out I stumbled on a pretty decent running combo. It ran great right up till it floated the valves at 4800 rpm.
:lol:
man those springs were slam wore out.