bear wrote:BULL ! Every Holley I've ever taken out of the box was waaay out of adjustment and needed messing with before the car would run right . That's "if" the vehicle started at all . Even after it's set up you can count on messing with it for as long as you own it . As for Eddy's ? I've only had two out of countless install's be out of adjustment out of the box . Any vehicle I've ever put them on weather I fine tuned them to the motor or just set them up , was once they were on you'd forget about ever having to mess with it again .
The newer Street Avenger Holleys are pretty much spot on out of the box.
I have a 670 on my 360 that I installed in 2005 (50,000 miles ago) that required a slight idle mixture adjustment, idle speed adjustment and choke adjustment and hasn't been touched since.