a727 lines

you make them up yourself very easy no special tools. Cut off wheel , Masking tape and some wrenches.Use #6 hose about 7 ft and you'll have extra . 4 female hose ends and 4 1/8 nipples to #4 flare unions. Cheaper and easier than anything else Won't burn , kink, or Get cut. I will never use anything else with headers.