fuel line size. 8an or 10an

[Sleeper]

The fuel cell i have has dual 8an feed. The regulator i have is 8an in and 6an return. The fuel rails i have have 6an fittings but they are made to work with 8an. Just need more fittings

I have the chance to change the regulator for a 10an and 8an return. Ill be running maily pump/meth or 110 mix.

Im on the fence as i feel what i have will be fine but ive never built something like this before. End goal 700-800hp. That wont happen with the stock junk im using at first but dont want to have to re buy.

[Blackpony]

-8 is plenty but you can never over build a fuel system

[jyro]

Build it to the largest size if there is a possibility of going all alcohol sometime.

[terminator03]

I run 8an feed and 6an return on my car and it made 704hp on e85 with no problems

[KBScobravert]

10an tank to Y > dual 8s to rails > 8s to regulator > 8 return.

[Sleeper]

Well both will be here tomorrow. Just gotta decide what to send back. Ill prob keep the 10an 8 return