Hello, I am building a '91 Camaro right now. I will have a stock '76 350 with an Edelbrock 600. I will be using the stock fuel pump from the '91 and a Mallory 4309. I will be using a Jegs fuel pump block off plate for where the old fuel pump sat on my 350. I posted pics on Facebook of all the parts I would be using on my build. I had a picture of my Jegs fuel pump block off and my freind saw it and wrote this;

Freind; "are you using the stock electric fel pump? if so you are doing a big mistake alot of cars got burned in my country because of the same thing the electric fuel pump has atleast 45psi and when you are using a fuel pressure regulator it drops the pressure to 4 psi ad the electric fuel pump get hot and blow up I really dont recommend using electric fuel pump on carb just change the cam and use mechanical fuel pump"

I then wrote

Me; "Are you sure? A lot of people do what I am doing in the States. I am going to be using the stock fuel pump with a Mallory 4309?"

He then wrote

Friend; "well its up to you I saw alot of caprice's 85,86,87,,etc burnd,few C4's,2 fox body mustangs it wont cost you if you buy junkyard cam on carb'd engine it will cost you around 20bd 200 dirhams I'd rather spend more time on doing something I will be on safe side than spending money on parts I will throw later"

Is this true or just b.s.???????

 

You absolutely do want to use a pressure regulator, otherwise the fuel will push past the needle and seat and the carb will overflow. If it doesn't happen right away, it will eventually.
Be sure to use a good regulator with a return line. Unused fuel will return to the tank which keeps gas flowing at a constant rate, and will make the pump last longer. Without a return line, the gas flow is being "held back" like a dam, and that can shorten the pump's life.

 

Yes I know I bought a Mollory 4309 and will use a return line. Will this blow up stuff still happen then?

 

No "blow ups", as long as you don't have any leaks. Your car already has a return line too, so you can tap into that. Any plumbing changes you make will be under the hood, so keep everything a safe distance from the exhaust. And it's a good idea (safer) to run fuel line using as much steel or aluminum hard line as possible, and using rubber hose only at a junction or a flex point (frame to engine connection).

 

Thanks brother. Whenever I have questions you are always the guy to answer them in full. No matter what they are about. You should own your own hot rod tech line. Thanks buddy and keep up the good work on the '69.