New Holley 670 Street Avenger in the mail today!

Looks good! I put a 770 Street Avenger on my 340. Thought I could manage it with a 670, but it wasn't enough carb. 770 fixed that, runs good now I just have a little more fine tuning to do. Great carb so far.

That's an interesting throttle spring set up you've got there. I'd be worried about those springs binding up with each other the way that they're routed.