Hot Rod Forum : Hotrodders Bulletin Board - View Single Post - Holley Electric Choke
View Single Post
  #4 (permalink)  
Old 06-12-2012, 10:15 AM
lg1969chevelle lg1969chevelle is offline
New Member
Join Date: Jun 2012
Posts: 1
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
If the choke is still open 1/4 after 2 minutes, you should check and see you have 12V going into the connector. It's how much tight the flap is closed, because there is a piston inside the housing that forces the flap to open no matter how tight the flap is closes. The tighter the choke flap is, the longer it takes to open fully. In the Winter the flap will be more tighter making the motor to run at a higher RPM during warm up and less time for the flap to open during the summer months. The piston in the housing uses manifold vacuum to open the choke. If you use a big cam that produces very low vacuum, the choke will not open. The more overlap in a cam the less vacuum it produces. The result is a flooded engine.
Reply With Quote