Mechanical or electrical fuel pump

I ran a 440-6 with .550 solid roller in my 70 Charger using mechanical and stock 3/8 line.

Low 12s @ 116 mph....shifting @ 6800 in a 4000lb car with driver.

No issues

Yeah, I went 12 flat with 3/8. You know what is funny? They say AN8 line is 1/2 but it sure isn't on the inside. It is much closer to 3/8 steel tubing. And 1/2 ALUMINUM tubing is closer to AN10 and wayyyyyy cheaper. That's what I ran on my 11.0 Duster in the 90's.