When changing the jets in a Performer 600 cfm carb do you have to change rods too?

Car wont take full throttle. Its bogs and dies. New tune up, rejetted to 2 sizes larger then stock. Fresh rebuild. and high flow neddle and seats.

-Terry-

 

No, on an Edelbrock Performer you can change the jets independently of the rods. Jets will make the whole calibration richer/leaner across the board from just off idle all the way to WOT. Rod changes can have different effects depending on what rods you select.

You may want to have a look at another post in this forum titled "can someone help me get my A/F ratio dialed in?" or something like that. More info you may want to know about in there, too.

BTW- it is rare for a new Eddy carb to simply have a big lay-down right outta the box. At least one that continues for more than just a fraction of a second. If your carb is experiencing a quick bog and then it hauls butt, accelerator pump tuning issues are much more likely than basic jetting/calibration problems. Eddys are reaonably close outta the box as far as jets/rods go. Accelerator pump issues are much more common.

 

I rejetted it to about a 800 cfm is why I asked. I didnt have this trouble until then and someone told me to change rods since I changed the jets.

Update: The carb seems to be doing great. Rebuilt it and cleaned all the ports. High flow needle and seats, and tuned up the ign. system.


Thanks for the reply!

-Terry-

 

Hmm... I don't think changing the jets will change the air flow capacity of the carb.

 

I was about to say the same...see here for adjusting that carb....


Main page
http://www.edelbrock.com/automotive/eps_intro.html

Adjustment
http://www.edelbrock.com/automotive/eps_sect2.html

also need to know if it's the 1405? or 1406?

1405 chart
http://www.edelbrock.com/automotive/eps_1405.html
1406 chart
http://www.edelbrock.com/automotive/eps_1406.html


easy enough to mess with...
easy enough for the street.