I wasn't comparing, I listed in notation form what you need Everything else is fine, by that i mean tested and proven countless times; by all means upgrade what ever you want for piece of mind, but this is the min required.
"cc" denotes the flow capacity of a fuel injector, in this case Sard 700's.
At rock bottom price of $230, just grab the 044, its a no brainer when your talking the price difference of a tank of fuel. These pumps used to retail for more then double this.
Agreed, u are very smart
Have fuel enter both ends of the rail, exiting in the middle for more even flow to each injector. Evening airflow to each cyl in a RB's hard enough (when hard tuned on th edge) without having to deal with non linear differences in fuel to each cyl as well. In reality a common street white bread 600hp RB will cope fine, by just being safe with ARF's and Ign adv.
Edit: Theres no bias here, I use an HKS rail, Sard FPR and a grands worth of dash fittings; I have my own reasons.