Hey Justin good to here from you, I haven't found a GT grill yet but am still looking I did manage to find a ST grill in good condition if you're interested. The vacum advance from another model might fit if you have an electronic dizzy you can match it up and make sure it is the correct one as always Thanks for your help. The EFI is coming along slowly I need to build a surge tank and purchase an EFI pump then should be able to convert it over. I will send some pics when I get the chance. Again thanks. Be safe I'll keep in touch.