you dont shift were it makes the most
you shift 500 to 700 after peak
then try 100 more or 100 less to find the best shift point
its not 5k in 318 with a 340 cam specs atleast 5500
anybody who puts a cam in 318 without upgrading the springs is a fool
Kinda depends on how well the power carries past the power peak. Solid cam with decent carry past peak, sure, 500 rpm past peak, then experiment to see what it likes.
Hydraulic cam with tired stock springs? And the power falling off a cliff? 200 past peak might be too much.
Bottom line? Experiment!