Steve Zack Article:
Henry Olsen Articles:

Tuning a Carbureted Street Rod Engine - Part 1 of 2

Tim Wusz Articles:

Vapor Lock: Causes and Preventions

By: Tim Wusz

Things That Contribute to Vapor Lock


  • High Fuel Temperature (130 and above can be a problem)
  • Long Suction Lines
  • Restrictions in suction line (fittings and filters) 
  • Hot soaks
  • Lines passing high heat areas 
  • Caution periods

Things That Prevent Vapor Lock

  • Cooler gasoline temps (100F or less is ideal)
  • Shorter (is better) suction lines
  • Eliminate sharp 90 degree fittings
  • Eliminate filters in suction line
  • Insulate lines in high heat areas




Questions on any of this? Call: 1-800-345-0076