The Edelbrock Carburetor Step-Up Spring Kit contains one of each 3 Hg (blue), 4 Hg (yellow), 5 Hg (orange), 7 Hg (pink) and 8 Hg (plain) springs. The springs are used to fine-tune the carburetor. The step-up spring is made of steel. It provides optimum performance to the carburetor.
- Fit Type: Vehicle Specific
- Package Dimensions: 2.54 H x 13.97 L x 3.555 W (centimeters)
- Country of Origin : United States
- Package Weight: 0.05 pounds








Gary Moore –
Prrfect
Randy Bentley –
Don’t really know what the colors are the card says blue. Which looks black then gold is it supposed to be yellow then silver then a yellow color no orange to me then pink Edelbrock can and should label each set of springs. I’m gonna just wing it good luck to who ever purchase this set
Rgoss –
I used the strongest spring in the set to help with part throttle hesitation/bog. The stronger spring set made a big difference.
Jeff johnson –
Tried the accelerator pump adjustment first. Top notch for quickest squirt on intial acceleration. Natural spring was the ticket. Running 20lbs of vacuum. If there was a heavier spring I would have put it in.
John E. Carroll –
Product was as described. Used to improve the performance of my street rod.
9 fingers –
The color coded springs don’t exactly match the colors they say they are on the box but they do what they’re supposed to
Dean Family –
Good stuff
Amazon Customer –
Look carefully. There are 2 springs for each size. Don’t need to order 2 packages.