rochester 2bbl jetting

awhile back I took my circle track 360 9-1, 2bbl engine into the dyno. after fireup he could not run it as he said it was too lean. it has 76's in there now (OE I would imagine)& I ordered several sizes larger jets. how many sizes up should I go (to get in the ballpark)? I think I'd rather be too rich than too lean??? It wont be dynoed but I dont want to have problem from being too lean. I'm ready to fire it up in the car. thank you for your time. RR