fuel pressure

I have an eldebrock 650 carb on my car I was wondering how much fuel pressure you all would run. I am running about 9lbs.

 

Nine is a little high. Six to six and a half is plenty.

 

thank you i was thinking the same thing

 

Edelbrock says 5.5 lbs. is "optimum"....

 

I had to run a regulator to my stock pump to make it run right. It would flood on hard turns. The stock pump was putting out like 9lbs and i adjusted it to about 4.

Been that was for many years now, no issues.

 

is there a special regulator you run.

 

4.5 to 5 lbs. is correct. I put one of those dial adjustable one's on mine and haven't had a problem yet..

 

On my 500 cfm on my 283, I'm running 5....I'm using an Edelbrock regulator...without it, the carb floods. With the 650 cfm on my 350, I didn't need one...go figure.

 

X2.....race cars don't even run that much pressure (9psi) !

 

thats what I will get thank you

 

Speedway has the Offy dial type one for $29.99. Part # 560-58500. The Holley one is good also for $32.99 part # 427-12803. This is the one I prefer, although the Offy would look more period correct. The Holley is available with low pressure for the old Strombergs as well w/ 1-4 PSI.

 

yep, I usually go around 4-4.5

 

Summit sells this one under their own brand as well. I've used these set to the full 4 with great success

 

Summits brand is a holley ina white box