Strip intake bolt hole

Yup I did it strip 1 out of 4 threads that holds my carb on:violent1: i however got a bolt a little longer and got some threads to tighten it up but not much.dont know how long it will last,so could someone tell me what helicoil kit i would have to use to drill the hole tap and then install coil,never done this ya think i can do the job.Thanks for your help.