Building a 1964 plymouth valant race car. Looking for headers.

Best bet might be to buy these....I have them and really like them, Hookers can get them new Hooker 5208HKR Hooker Super Competition Long Tube Fenderwell Exit Headers - Painted
Thanks for the pics and info. I wonder why hooker only makes them with a 2.5 inch collector? I finally found that headman makes a 1-7/8 but looks like everybody is out of stock.

Screenshot_20221007-192305_DuckDuckGo.jpg

Screenshot_20221008-194250_Chrome.jpg