Thread: Mechanical secondaries question, 305 sbc

Tweet

Alrighty then – My insides tell me that you’re rich on the 1406. Edelbrocks tend to be rich from the box on stock (or nearly stock in your case) applications. If you don’t already have it, download the manual from: http://www.edelbrock.com/automotive_...ers_manual.pdf

Read the whole thing- really. It will give you a lot of insight and help you understand what I’m saying here. After you read the manual, go to page 22 and 23 to determine exactly where your bog down condition is occurring. My guess is you’ll want to change jets and metering rods to meet number 7 (red annotation below). This requires a 1426 jet set and 1456 metering rods. Check your local go-fast parts store. If they do not have them, both parts are available from Summit, under part number EDL-1426 (jets) and EDL-1456 (metering rods). The jets are $3.99 and the metering rods are $7.99. You will also need a new gasket set, EDL-1472 - $8.95.

You can do this yourself, but it’s a bit tricky and you need to study the pictures in the manual I told you to read. It can be done while the carburetor is on the car, but be very careful with the little parts. If you’ve not done this before, you may want to remove the carburetor and perform the “operation” on your workbench (or the kitchen table – like I did my first fifty or so – I have a very good, understanding, and loving wife!)

I'm sure others will chime in. Le us know what you come up with.

Regards,
Glenn