[boodlefoof]

I'm planning out the fuel system for my '63 Tempest that will have a fairly hot street/strip stroked 400 and hopefully run in the 11s (or better!). The engine will have a pair of Holleys on top. I'm starting from scratch and am considering going with an electric in-line pump setup. I haven't put together such a setup from scratch before. I could use some help with planning.

Here is where my plan is currently:

1. Find a stock-looking tank that fits and sump it;
2. 1/2'' lines and hoses throughout;
3. pre-pump filter Summit 230118 (100 micron, 8AN in/out);
4. Holley Black pump p/n 12-815-1, (3/8 NPT in/out);
5. pre-regulator filter Russell 650103 (40 micron, 8AN in/out);
6. return-style regulator (tucked away somewhere out of sight); and
7. from regulator, plumb one 1/2'' line through gutted dummy stock fuel pump, then up to carbs, splitting the single line with a tee fitting.

I'm unsure on which pressure regulator to choose. Holley's recommended part numbers with the pump are non-return regulators. Having read through numerous archived posts on this topic, I'm convinced I want a return-style regulator though. Any recommendations on one to use? The Holley 12-845 looks like it would work, but is $150. The cheaper ones that I see have 3/8 NPT outlets. Would a 3/8'' regulator result in substantial restriction in an otherwise 1/2'' setup?

I note that the fuel pump is also 3/8 NPT, but the price on pumps starts going up quick on larger in/out pumps...

Any general comments are also welcome on things I could do better, including comments on how to save a few bucks!