Advance spring

SO my new factory distributor had stock springs, I got the Mr Gasket spring kit.pulled 1 heavey spring and put 1 lighter spring in. Awesome throttle response,but it pings at part throttle but not at wot.360 30 over 9 2 1 compression.18 at idle and 34 , full advanced i have put my old dizzy back in with the factory heavey spring no ping but not so good throttle response. Is there a better spring kit that is out there.thanks again.
Pinging at part throttle can normally be solved by backing down on the vacuum advance.
At part throttle the manifold vacuum is higher and pulls the advance higher.
(That is if you are running vacuum advance)