I had the same problem. I ended up buying the pneumatic brake fluid bleeder from Harbor Freight…. best $35 I have spent. I tried hand bleeding, using a mityvac large pump… but the pneumatic did the trick. Check all your lines again for leaks… and make sure the follow the bleeding order that is in the chop manual. Hope this helps.

I have a ’64. I went with Detroit Steel Wheels. 20×9 with 4.5in backspacing. Tires are 245/40/20. I have mine bagged, and am about an inch off the pinch weld. Hope that helps.

I’ve seen those gas tank but ancien owner made his own exhaust system and it’s impossible to mount original tank!

https://www.ebay.com/itm/Gas-tank-for-1964-1965-Lincoln-Continental/352117391565?fits=Year%3A1964%7CMake%3ALincoln&epid=17005662618&hash=item51fbd500cd:g:rncAAOSwDtpZbiCF

Ive never heard of the mustang gas tank fitting, id go with one of the reproduction tanks on ebay.