Fuel pump with carbs, Should it run all the time? Options

[brooks944]

Hi, I have a 1.8 ( now 1911) with 40 Webers and Web cam. It has run rich and my local shop has changed jets and it was running strong. I am now having starting problems and it seems to smell like it’s rich again. Last time I drove it it backfired a couple of times under load and it sounded like the backfire was from the carbs(?). My main question is on the fuel pump, which is a faucet type from the local auto parts store. Should the pump run continuously or shut off when a certain pressure is reached? Mine runs all the time when the key is on. I don’t believe there is a fuel pressure regulator on now.
Thanks for your help on my issues,
Rick

[brooks944]

Thanks all for responses. Does anyone have pictures of where they located the regulator? I got the Holley one that was recommended with the gauge, and now request your input on where to locate. porschetub had his on the rear engine bulkhead, anyone else have their’s there and some pics or other recommended locations?
Again, thanks for everyone’s help.
Rick

[porschetub]

Thanks all for responses. Does anyone have pictures of where they located the regulator? I got the Holley one that was recommended with the gauge, and now request your input on where to locate. porschetub had his on the rear engine bulkhead, anyone else have their’s there and some pics or other recommended locations?
Again, thanks for everyone’s help.
Rick

I have a six conversion so mounting there was best for me considering carb layout and ability to read the gauge easily , but you will need a "tee fitting" downstream from the regulator then you can mount your gauge there and read it easily .
Use FI fuel hose clamps not the screw thread type as they chew up the hose ,best hose is Gates Barricade hands done ,tried other brands not ethanol rated as advertised !!!.
Good luck ,cheers.