[Formulajones]

Another thing about running lines, even though Holley doesn't promote it, in fact there are way too many kits on the market that don't promote it, is that you should really have the regulator as close to the unit as possible.

They talk a lot about this on the Holley forum. Having the regulators as close to the unit as possible for the most accurate fuel pressure readings "AT THE UNIT" really helps the EFI run like it should, especially the self tuning aspect of these things because that entire fuel table and it's calculations are based off fuel pressure.

All these kits that regulate fuel way back at the tank are just kits to try to get more people on board with EFI using a lower price point by eliminating extra lines, fittings etc...and making it look simple. While it works, it's not optimum. But they don't want to tell you that.