68 Charger, 440, RPM, Mighty demon carb. Hood clearance same as what you show in those pics. Wasnt any better with an edelbrock 1407 I used to run. I use a stock 68 unsilenced air cleaner. Due to the odd diameter of the stock mopar lid, the usual suspects for drop base won't work. I had to buy a complete ford motorsports air cleaner on ebag. I just used the drop base from it. plenty of clearance now. this was years ago and maybe someone has come up with a drop base thats the right diameter. As an aside, I ran a holley projection for a while and that TB was definitely shorter than a normal carb. I was able to run the standard base that came with the unsilenced.