No, the line was nylon braid. Interesting. I have the original fuel line from the tank to the pump on my 68. I also have 464 cid, have run the thing to 7,000 rpm and have not run out of fuel in the 800 cfm carb. I had a problem with fuel starvation when the engine was still 428 cid. I put a fuel pressure gauge in and I was losing pressure at about 6000 rpm while going up a long incline. I replaced the fuel pump and have not had a problem since. (Thank you to the folks who suggested the gauge) Is the robbmc pump mechanical or electric ? Do you have a return line or just the feed line? I'm a fan of bigger, if I replaced my line it would be larger, can't hurt.
