I just did this for a Holley bowl bolt in the main body. Gingerly drilled out the insert (and then picked out the remaining pieces), retapped and added a Helicoil with Locktite. As noted, there are better inserts.If you just want it fixed, Drill that fucker out and thread in a new helicoil with locktite. Clean the hole good. Timserts insets are good but you have to get the angles right. With a helicoil I put a couple of other bolts in to ‘sight’ off and you can drill it easy. Helicoil are my least favorite.