I need to cut the side holes for the exhaust header exit to the side pipes and need to confirm what the original S/C holes looked like.
I found this picture from CSX3042 that shows a slightly rounded top section of the hole and then flaring to the rear and bottom.
https://www.mecum.com/lots/462048/19...obra-roadster/
Then CSX3090 has a straight top section and then also flaring to the lower rear.
https://www.mecum.com/lots/562038/19...obra-roadster/
Does anyone now of some hole dimensions perhaps?