For my otherwise stock '56 312, I now have the later dizzy installed & bought a ECZ-9425-B intake that I plan on installing next week. I have been searching the forum for anything related to carb preferences, issues, & tuning. I plan on a very mild rebuild in the future, slightly hotter cam, headers, nothing too fancy. I'll never race it, just want a fun weekend nice weather cruiser with good drivability & a bit better performance.

So I see many have good experience with the Holley 390, Demon Jr 525, & the Edlebrock 500's. Opinions vary of course, but generally I am seeing positive results with these. Should I worry that I will outgrow the 390 & wish I would have gone with one of the others? The Demon Jr gets a lot of praise, but I also see some saying they needed to modify the vacuum port for proper distributor advance & also will need to hog out the B intake to match the large carb throats. That sounds a bit scary. Also I worry the Demon Jr being so physically large it wont fit under my T-Bird hood.

Those of you that have been down this path before, if you had to do it again, what would be your choice? For rebuilt carbs, the price differences don't appear to be a huge difference. E'brocks could save me some, but not if it isn't the right choice. I am thinking electric choke & block off the intake's center exhaust passageway with thin sheet metal.

I value your thoughts!

Brian - 56 T-Bird

Woodinville WA