Dart Big M windage tray

[gunner]

I have a Dart Big M block and I want to use a windage tray I have. My question is what kind of main bolts should I use so I can install the windage tray. I looked for something from ARP, but I didn't have much luck, Any help is appreciated. Thanks.

[Awesome Bill]

Milidon makes those studs with the 3/8 fine thread on top you can use and place the windage tray any height you whish.