Hot Rod Forum : Hotrodders Bulletin Board - View Single Post - vacuum secondary or douple pumper
View Single Post
  #14 (permalink)  
Old 01-29-2013, 11:30 AM
ap72 ap72 is offline
Last photo:
Join Date: Jun 2005
Location: St. Louis, MO
Age: 31
Posts: 9,544
Wiki Edits: 0

Thanks: 20
Thanked 404 Times in 377 Posts
Originally Posted by lg1969 View Post
Bowtie, For your application you really need a 650 vacuum secondary. You need torque not RPM to hall all that heavy cargo. 750 is to big to do the job.
a 750 with mechanical secondaries is too big, with vacuum secondaries it really isn't an issue as they only open with enough air flow, and not a second sooner no matter how hard you stomp on the throttle.
Reply With Quote