5.0GLPEFS power valve size

[jhamblett]

Can't for the life of me figure out which power valve to use from holley rebuild kit. 2.5 or 4.5. I do not have a manifold pressure yet to divide by 2 to get close. Any insight?

 

[Lou C]

Take the build # off the air horn & look it up on Holley’s website

 

[Scott Danforth]

exactly. take the number and look it up in the Holley documents library. will also give you float setting, primary jets, squirter info, etc.

or look at your old power valve.