Hot Rod Forum : Hotrodders Bulletin Board - View Single Post - Holley billet fuel pressure regulator issue.
View Single Post
  #2 (permalink)  
Old 05-10-2019, 09:52 PM
BogiesAnnex1 BogiesAnnex1 is offline
Registered User
Join Date: Apr 2007
Posts: 13,337
Wiki Edits: 0

Thanks: 392
Thanked 1,474 Times in 1,162 Posts
Sounds like this pump only gets to 3 psi

If you're not using a bypassing regulator you old electric pump probably overheated then pressures go down.

For a carburetor of factory TBI, I like to run either a high capacity in tank low pressure (15-20 psi) TBI pump or a pair of standard Low Pressure TBI pumps in parallel with a bypassing regulator back to the tank. This insures plenty of cool fuel with a steady pressure at the carb regardless of engine consumption.

Reply With Quote