RARE experimental air cleaner 62' for 383 or 413 dual inline 4 barrels

is this stuff still for sale .... i have sat in these F4s in thialand to ck fuel pressure i was fuel sys repair man. o and philipinines. r they still 4 sale . don more on c130 a7 B52s 121s c7s 123 s one or 2 helecoptors B52 also. 4 or sale or junk. i am 100Per cent dis abled.