1984 e-350 van w/ 460

IT IDLES FINE BUT AS SOON AS YOU DRIVE IT IT STARTS BACKFIRING. iT HAS A 4 BARREL CARB. iS THEIR A FUEL AIR MIXTURE SCREW

Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
The mixture screws only control the idle, so you need to keep looking if it already idles fine. If it backfires through the carb only when accelerating, you could have a bad camshaft or broken valve spring.

Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

Motorsforum.com is a website by car enthusiasts for car enthusiasts. It is not affiliated with any of the car or spare part manufacturers or car dealers discussed here. All logos and trade names are the property of their respective owners.