You'll want to tighten the forestay and backstay to about 15-20% of their breaking strength. Shrouds are tightened to about 10% of breaking strength.
You'll need a tension gauge. Like this one:
When you get your tension gauge you get all the information you'll need, i.e. breaking strength of 3/16 stainless steel cable, which is probably what you've got.
My boat uses 1/4 inch cable and the breaking strength is 8,000 pounds, so my forestay and backstay are tensioned to 1200 pounds and shrouds are at 800 pounds.
It'll make a heckuva difference is the way your boat sails.
BTW.....America's Cup racers tension all rigging to 100% of breaking strength!