Engine Sick of stock TB and EGR spacer...

So I'm in the process of replacing a lot of stuff during the winter months on our 90 7 up convertible. The whole intake manifold is off the car right now.

Ever since I ditched the bbk 70mm throttle body I've dealt with coolant leaking between the stock EGR spacer and throttle body. The parts I bought were used. I'm assuming something isn't square. These manifold studs are trick flow and I put these on less than 2 years ago. Assuming it's not normal for them to be rusty? Maybe put anti seize on them?

Either way, I'm seriously thinking about buying a accufab 65mm throttle body and a pro m MAF sensor. But seems like a waste on a otherwise stock car.

And I don't feel like ditching the EGR....

Thoughts?

Edit: you can kinda see some coolant on the outside of throttle body by gasket.

Also my big question is, can I run a stock 94-95 mustang 5.0 MAF sensor if I install a 65mm throttle body? I read that they are 70mm? I can't find the bracket anywhere though to mount to the stock air filter box.

AeroCoupe said:

You need to run a straight edge over the TB, both sides of the spacer, and the upper intake and make sure it’s all flat.

You say you got rid of the BBK 70mm TB. Did you go back to a stock TB and continue to use the BBK 70mm spacer?

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Stock TB and EGR spacer. I do have another stock TB and EGR spacer I could try.

Mustang5L5 said:

Yes, you can run the 94-95 70mm MAF. Really the biggest issue is the adapter flange needed to bolt it into the fox air inlet due to it being a 4-bolt MAF.

A workaround is to find a 91-93 cougar 70mm housing and swap the 70mm electronics from the SN95 MAF over. The housings are exactly the same other than the cougar being a tube mount MAF on both sides and SN95 being 4-bolt on one side. Cougar electronics will not work for you though as the transfer curve is different. Really it comes down to what you can find/buy easier. The 4-bolt adapter flange or a cougar housing

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Awesome thanks for the info!