Gotta Make em yourself
I did a lot of eye ballin' & estimatin'. Found me a decent set of used covers, bought the breathers to figure the diameter of the stacks. Then started patchin', cuttin' templaten'
They turned out pretty decent. A quality welder would probably cuss me out a few times for my lack of clean welding but i figure these probably were made for racing & not so much for beauty back then anyhow