I've got a 68 chevelle with a 350, 650 vacuum secondary, Occasionally rev to 6250 rpm...I'm using a cheap 30 dollar perferator (spelling??) electric fuel pump, close to the tank, I'm curious if this is restricting my performance, my friend has the same deal, except he is using a 750 qjet mechanical secondary, I'm almost positive he is loosing out using that fuel pump.... any commensta re welcome, suggestions, whatever...thanks graemlins/beers.gif

I think you mean "Purolator"? If so, those cheap pumps don't put out much. We typically use them in conjustion with a mechanical pump on long wheelbase applications like motorhomes. They help keep the engine cranking down to a minimum trying to pull fuel up to the carb. They are more of a boster pump than anything.

I've seen guys use those purolator pumps under the hood as their only fuel pump :rolleyes: then wonder why the car don't run right.

Well, that is all I'm using, i have no mechanical fuel pump in my car, it does run pretty strong, but wondering if it will run stronger with a new mechanical, or a better electric? thanks graemlins/beers.gif

Definetly put in a new mechanical..

I hate mechanicals, i hate having to crank a lot. I belive electric fuel pumps solve a lot of starting problems with carburated engines. Can you maybe recommend a better eletric pump to use? And also which mechanical do you recommend? thanks graemlins/beers.gif

I personally like and have used the following pumps... Mallory, Magnaflow, Aeromotive, and Welden. All perform well and have varous sizes, some brands are more expensive then others.

Originally posted by chevelle68malibu:
I hate mechanicals, i hate having to crank a lot. I belive electric fuel pumps solve a lot of starting problems with carburated engines. Can you maybe recommend a better eletric pump to use? And also which mechanical do you recommend? thanks graemlins/beers.gif I have never had any situation where I had to crank and crank due to the mech fuel pump..

but Carter 120 or 172 for mechanical and Mallory 140 for the electric if you decide to stay with electric.

Originally posted by chevelle68malibu:
I hate mechanicals, i hate having to crank a lot. I belive electric fuel pumps solve a lot of starting problems with carburated engines. Can you maybe recommend a better eletric pump to use? And also which mechanical do you recommend? thanks graemlins/beers.gif Unless your fuel bowl(s) is leaking, there will be gas in the bowl, allowing the car to start instantly.

Later
Steve

Originally posted by mc71454:
</font><blockquote>quote:</font><hr />Originally posted by chevelle68malibu:
I hate mechanicals, i hate having to crank a lot. I belive electric fuel pumps solve a lot of starting problems with carburated engines. Can you maybe recommend a better eletric pump to use? And also which mechanical do you recommend? thanks graemlins/beers.gif I have never had any situation where I had to crank and crank due to the mech fuel pump..

but Carter 120 or 172 for mechanical and Mallory 140 for the electric if you decide to stay with electric. </font>[/QUOTE]I've run into this several times on motorhomes and converted buses. They often sit for so long in between uses that the fuel evaporates out of the carb. Those little electric pumps help in this situation.