I have been working on getting a Street Demon 625 dialed in and I thought I would share what I have learned so other people might have a little easier time. My other carb is a Street Avenger 670 which also took a while to dial in. I just tried the Street Demon out of curiosity.
I have a '67...
Thanks for all of the suggestions. I adjusted the pumpshot, put in a new power valve, put in a couple of new size jets, etc. on the Holley and it did not solve the problem. I did however get the thermoquad to work properly. Here's how.
After fooling around with many thicknesses of carb...
Thanks for all the helpful info. I will follow the advice in a stepwise manner and see if things approve. I torqued the carb down pretty tightly and all openings either have hoses attached or vacum caps so I hope there is not a vacum problem, but I will check that out as well. Getting specs...
I have a '67 Dart with a 340 (and drivetrain) from a '72 Duster. It had a Holley 670 on it which had a horrible dead spot when I nailed the accelerator. I played with the float and so on but it never really helped too much.
So I got a rebuilt Thermoquad off eBay and installed it as well as a...