Quote:
Originally Posted by Overkill
I measured the distance that the fuel line is from the front of the header and it is about 1.75" from it. How close is too close? I am going to try and build a metal shield to block the heat from the lines to try and keep as much heat out as possible.
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Bingo, i'd bet that is your problem right there. Stainless line and pumping that much fuel will heat things up pretty quickly. As well the fuel in the tank very well could have been on the verge of boiling, depending on the grade etc. gasoline can have a boiling point in the 120F range.
I would keep the fuel line as far away from a huge heat source as possible. Think about it this way, with the engine running at 2500+rpm for an hour straight, would you want to hold your hand 2" from the header tubes?
I'm curious why they advised against using a voltage regulator. From my experience they work very well and reduce load on the pump as well as electrical system. Dial-a-flow is good stuff.