I am converting a maxima EFI head to carb application. I wanted to fill the injector holes.

I am thinking of using JB Weld like i had seen done by a bike racer who filled runners and reshaped to increase velocity. My only worry is the head expanding and the fill dropping out in the future.

Any recommendations/suggestions/ experience?

- to fill or not to fill that is just one question

I figured that grinding some ruts in the hole area will help the JB weld grab.

No need to fill....

Thanks!