Edelbrock Thunder series 800 on 408 stroker???

I am very curious of your experience with this, I currently have a 625 cfm Carter AFB on my 360 (Magnum heads, 10.5:1, small Voodoo cam) and am looking to "upgrade" to a 670 Holley Street Avenger. Did you spend much time tuning your Holley compared to the Edelbrock? I understand the Holley vac. secondaries tend to open slower than the Carter/Edel ones because of their design...

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Rob is correct & should have worded differently. The AVS secondaries are mechanical and it is the air door adjustment that controls airflow to secondaries that helps control/eliminate a bog. Love the ease and simpleness of this adjustment. The 670 avenger is an awesome carb from my experience and is vacuum secondary, but has a neat quick adjustment setup with just spring changes. I could just not get an initial bog out of mine but it was my limited holley tuning ability not the carb. Only reason I really changed from the avenger was my comfort level tuning eddy's and mine developed a leak over the winter down period( probably from sitting ) so would absolutely recommend the avenger and am thinking about trying the 570 cfm unit on the 273 in my valiant.

Oldschoolcuda