hey
just wonderin a couple of things
i have a ca18det goin in my ute (its in just getting things sussed)
i have a carter black lift pump, 044 bosch fuel pump the engine will be mostly stock to begin with but will want to improv it later down the track (turbo, computer etc) so my questions are

1. what size surge tank should i use (atm im thinkin 2 ltr (will be making it at home))

2. why do lots of ppl run the return line to the surge tank wouldnt it be better to go to the fuel tank again so the fuel can cool down more?

thanks
Tom