So I got my FFR Coyote shorty headers. Got them bolted up and there is almost no room to connect a J-pipe. And I have the Whitby spacers raising the block. There looks to be ~1.5" between the header and the 4" main tube.



And about half the outlet is over the main tube as well.



I took out the 302 j-pipes I had laying around just to see how close it is. It looks like I need at least and 1" more clearance to get them to fit. Dropping the trans mount would create interference with the driveshaft. Drivers side looks like the exact same issues.