Headers VS Manifolds

I don't need pic's, I have the 340 manifolds the 318 for 1968 and the manifold for early a bodies to look at the outlet is way smaller on the non 340 manifolds and the inlets are smaller also. but being the motor mounts are at the front of the engine when you lower the trans it causes the manifold to hit the coupler. so I guess you will have to get some headers because your kinda stuck since the car is this far along or switch to a 904 transmission.
RESTO:
The engine is sitting 1/16 bubble off level front to back....not a huge tilt. The 727 hump section behind the bell is what is hitting using the stock trans mount. the stock mount is about 4.5 inches tall....to get the angle right and not have the hump hit the tunnel that mount is now about 2.25 inches tall....the tail is just under 3/8's away from perfect
( perfect being where the 904 sits) ( the geometry of the top of the trans is where the issue is....the bottom plane is pretty close to where it is supposed to be.
the car has been rotisserie'd and is painted flawless on all sides...a wee bit late in the game to start hackin the tunnel......in order to get the stock mount to fit I would have to cut out the section that covers the hump of the 727 (hump is where the drums are)...the bell fits fine. The rest of the clearences appear to be OK...but like the book says there is only about 1/8 clearence across the top of the bell.....if the motor is buckled to the frame a solid mount is not much of a worry.
Waggin:
Well I do not have them here for pictures I am operating from memory (right now) so there may be a slight difference port side...but as memory serves me, the port side looked to be the same size and shape when they were sitting side by side.... .again there is a definite difference dump side, I believe that is where the restriction may come in. When they get back I will take pictures...( worth a 1000 words)