Recommendation on fuel pressure regulator for return line on dual carb Options

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Hi folks end hope everybody’s having a decent Saturday.

I need to button up another project car that was previously (long time ago and original engine long gone) a fuel injection car so it’s got the return line like they all do.

It looks like many of you like to use a pressure regulator in the return line, rather than simply capping it off, and I was wondering if there’s a specific regulator that you would recommend or if a Holley rotary dial to select pressure unit is fine to use.

Thanks!

[friethmiller]

Question: why can't I find a by-pass fuel regulator that adjusts below 4psi? I need 3psi for my Webers. What am I missing here? (IMG:style_emoticons/default/WTF.gif)

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Question: why can't I find a by-pass fuel regulator that adjusts below 4psi? I need 3psi for my Webers. What am I missing here? (IMG:style_emoticons/default/WTF.gif)

https://patrickmotorsports.com/products/fue...kkLfIWfZkT5OYvc

This device is an option. I struggled with the same problem a while ago, in switching to a return system on the Zeniths from a deadhead. If you order one, BE WARNED: you may have to rebuild / reseal everything before fitting. I ordered mine from A Well Known Supplier (not PMS) and had weeks of returns and dissatisfaction before I had a working unit. Clearly was not tested by the supplier before shipping, so presumably had been in a warehouse for a while; it leaked like a sieve when I put it on the car.

On the plus side, after resealing (fiber washers) the second unit, it actually worked well (and kept all the gasoline on the inside, as intended). Adjusting to 3PSI - 4 PSI range is super easy, and looks business-like in the engine bay.

Caveat, you know, like, emptor.

- Tony