[mdross1]

I too am a Holley addict,been using them since the 60's.They like any hp part needs to be tweaked to the motor it is trying to feed fuel to.Presently have a Davinci 1000cfm dbl pmp on 460 it is incredible out of the box but just a couple of jet sizes too rich,the way Dan sends them.This spring will dail it in.It is very difficult to give an accurate hp number not knowing all the details.