Quote Originally Posted by Dave Severson View Post
Sounds like another happy Holley customer, sure beats the heck out of fiddling with jets and timing every time you go someplace! Many moons ago we used to go to a big bracket race in Denver, from South Dakota, talk about a steep learning curve on the tune up at that altitude! The EFI units have certainly improved all those old nightmares!

In 1968 when I’d take my 66 GTO to the track we would disconnect and plug the vacuum line and adjust the timing to about 34 degrees. Different conditions we’d adjust up or down and tune the carb as best we could with a screwdriver. The Holly guys with their boxes full of cams, springs, and jets were on the apex of technology, and we were in awe