Guys I don't have a Stang but a Oz 1991 4Runner which I fitted with a HO 5.0Mustang Cobra engine way back in 1993 while it was still under a Toyota warranty, 
Its also ungone a lot of other changes since I brought it along with additional engine mods.
The following are details of the fabrication project so its past tense
I previously made two different upper manifolds as I didn't like the stock Ford unit and mine worked better anyway, ;D. It looked like this and the middle section is actually a cover over the manifold I made.
But I am now working on an entirely new upper and lower efi setup using 8 trumpets. I have a spare engine set up to build it on so when its finished its a simple matter of swapping it onto my engine. Originally the plan was to use this setup but after investigation it was evident that the front stacks and dizzy were just too close to be able to be used.
The stock dizzy has a very large cap and there didn't seem to be an easy way of getting around it as this pic shows. The plate section also needs to come forward another 20mm so I had to consider alternatives. I was at one stage about to make an adapter plate for my dizzy to use a smaller cap.
But I then located a stock replacement Mallory dizzy in the US that also had a small cap option and this provided the solution provided I rearranged the leads to obtain better clearance etc. But the stacks bellmouths were still too big so the obvious step was to get some stacks with a smaller bellmouth, which I did and along wth the new dizzy there appeared to be just enough space, but it would all have to be fabricated with nothing to spare.
The first step was to make the main plate section and a cover that would clear the stacks and dizzy etc. This was a real challenge being a touch fit so I have had to fabricate everything and then clamp it together exactly where I wanted it welded and so far all is going to plan.
This is the main plate section with new smaller stacks.
This was the box clamped up as the front area was critical and had to be welded exactly as clamped.
It was starting to come together. I planned to remove the stack base plates so I could press them directly into the plate.
And now the top section clamped to the welded lower.
Once that was done and test fitted I then worked on finishing the top plate section and drilled all the extra holes required to mount the sealing bead section on the plate and its currently as per this pic.
The next step was to mount the throttle body and I was going to mount it using a tube extension as per below but decided it would look better if mounted directly on the cover.
This meant I would have to cut the fuel rails but this was not a big deal although once again clearance was an issue but I managed to overcome this and its now basically on and this is where I am at. I am fabricating a cover section for the throttle body and injectors and fitting cover mounting bolt sections.
Its been a challenging project so far and I will post updates as they happen, ;D.
JD
Its also ungone a lot of other changes since I brought it along with additional engine mods. The following are details of the fabrication project so its past tense
I previously made two different upper manifolds as I didn't like the stock Ford unit and mine worked better anyway, ;D. It looked like this and the middle section is actually a cover over the manifold I made.
But I am now working on an entirely new upper and lower efi setup using 8 trumpets. I have a spare engine set up to build it on so when its finished its a simple matter of swapping it onto my engine. Originally the plan was to use this setup but after investigation it was evident that the front stacks and dizzy were just too close to be able to be used.
The stock dizzy has a very large cap and there didn't seem to be an easy way of getting around it as this pic shows. The plate section also needs to come forward another 20mm so I had to consider alternatives. I was at one stage about to make an adapter plate for my dizzy to use a smaller cap.
But I then located a stock replacement Mallory dizzy in the US that also had a small cap option and this provided the solution provided I rearranged the leads to obtain better clearance etc. But the stacks bellmouths were still too big so the obvious step was to get some stacks with a smaller bellmouth, which I did and along wth the new dizzy there appeared to be just enough space, but it would all have to be fabricated with nothing to spare.
The first step was to make the main plate section and a cover that would clear the stacks and dizzy etc. This was a real challenge being a touch fit so I have had to fabricate everything and then clamp it together exactly where I wanted it welded and so far all is going to plan.
This is the main plate section with new smaller stacks.
This was the box clamped up as the front area was critical and had to be welded exactly as clamped.
It was starting to come together. I planned to remove the stack base plates so I could press them directly into the plate.
And now the top section clamped to the welded lower.
Once that was done and test fitted I then worked on finishing the top plate section and drilled all the extra holes required to mount the sealing bead section on the plate and its currently as per this pic.
The next step was to mount the throttle body and I was going to mount it using a tube extension as per below but decided it would look better if mounted directly on the cover.
This meant I would have to cut the fuel rails but this was not a big deal although once again clearance was an issue but I managed to overcome this and its now basically on and this is where I am at. I am fabricating a cover section for the throttle body and injectors and fitting cover mounting bolt sections.
Its been a challenging project so far and I will post updates as they happen, ;D.
JD
