Let's see those Mazzolini/TTI/ProParts header installs.

pittsburghracer said

Here's a picture of my green 1974 Duster back when my buddy owned it. We traded cars (my Daytona for his Duster) and here's a picture of his 440 in it. He took his engine and I took mine but we of coarse traded headers. If I ever finish this car it will be a 440-1 headed 505 Mega block build and should easily be in the 8's.View attachment 1715333371

Click to expand...

Is that a fuel pressure gauge isolator on the firewall by number 7 cylinder?

I ask because I use one and the instructions said to keep it level with the gauge to keep the gauge accurate. My gauge shows 9 pounds of pressure but nothing gets past the needle and seats.

So, either I have a mounting issue or the gauge is garbage.