Anyone with experience building tri y headers

Hi Keven I totally agree with you that the primary’s should be longer ,from the reading I found , my thoughts behind this was to use what I had on hand or make keep it tight ,not much room to work with and the motor is mild build not looking for every hp, just keep it clean ,if I was building from scratch definitely would do it different and probably easier haha. If you find out any information and care to share I would be interested to know what you find out as in the pictures I have not been able to get to the garage to continue with the project till November I finally will have holidays to finish it , good luck to you to. gary