Holley carburetor question

[Alan Roehrich]

Originally Posted by Geerhead55

Alan,, Do you think he should stay with the Scorpion? As I was reading this, and seeing a max RPM of 6500, I was thinking use an Air-Gap. We're not given any info on cylinder heads being used, so if they're nothing outrageous, perhaps the dual-plane would work better with this combo,,,just thinking out loud.
Paul,, I've loved following your Chevy II build, as I had one myself years ago. Yours looks great, and I hope you have a lot of fun with it.
Danny Durham

Danny, I don't think the intake is a really big deal here. It's a light car, with a ton of gear. A 3.06 low gear with a 4.10 rear, in a car that weighs maybe 3300 or so. The only problem the car has is the drop between 1st and 2nd with a low vehicle/wheel speed.

Certainly, if I were choosing an intake because it did not have one, I'd lean more toward a Performer RPM Air Gap. Or maybe a Holley 300-25, if I were wanting to move the power band up by running a single plane. It might be different if the car were heavier (say 3600), or had more cam (big), or less gear (3.08 or 2.93). If one of those were the case, then I'd say an intake change would be a good idea. Even more so if two of those were the case.

We also have to realize it is probably a fun street car, and he's probably not hunting that last hundredth.