Depends on if the part was manufactured in Canada or the US. I just bought some Mopar parts from a Canadian Vendor and there weren't any tariffs.

Brent, Put me on the list for one.
Thanks

I used the master cylinder from a late model Mustang Cobra and fabricated an aluminum wedge to angle the M/C up like the Boss 429 to get clearance.

It is for fuel and corrosive gas if it were for refrigeration it would be braise on brass with 80% duty cycle. Stainless becomes brittle when used with refrigeration gasses and fails. It does state it is designed for all fuels meaning Diesel which the most corrosive fuel their is. Diesel eats everything including ceramic eventually.The one shown is stainless seat and needle with ceramic seals and 100% duty cycle and full flow. Certainly better than a Mr gasket foreign product but about twice the cost but the could is easily changed in less than a minute should it fail ever the Mr gasket has to be removed and replaced to be serviced.

What refrigeration gas are you referring to? I have been in the HVAC&R trade for 25 years and stainless is used all though out the industry where needed. Brass is much easier to machine than stainless and is used more frequently for valve bodies. TXV's (Thermal Expansion Valves) have stainless needles and pushrods and I have never heard of one failing due to becoming brittle.

Incredible work!!
What are you running for ignition control? I noticed on a prior post that you have an MSD crank trigger but it looks like you have a trigger wheel behind the damper also. Are you experimenting with a crank trigger with more teeth for greater resolution like some OEM triggers or is it for something else?
I am planning on a distributor less system also and I am looking into the FAST XIM module.
Thanks for the information you provide for everyone!!
Duane

Duane Bjornson here, I have been on the FE forum for a while but mostly lurking and don't post much.
 I started working at a Ford dealer when I was 16 as a helper and one of the techs there had 13 Mustangs from 65 to 72. He got me hooked on the FE engine. I left Ford at 19 and started an apprenticeship in the HVAC&R industry working for the Trane corporation. I worked in commercial and industrial refrigeration for 15 years until the local apprenticeship training center hired me full time as the HVAC&R instructor!

Cars 72 Mustang (was the first). Sold the 72 and bought a 68 Mustang coup and beat the crap out of it but had fun. Sold it to get my 69 convertible which is my on going project that my wife loves to hate. I was excited to see Jay making a 69 Shelby clone. Not many of them around and they are unique which is why I am cloning one. My project has evolved through the years (kids take time) but I enjoy the time I get to tinker with it. With the SOHC there has always been something that needs custom attention (engine is set back 3") but it's fun.
Great amount of knowledge with the different people posting and I enjoy reading and learning.

One of my latest mock up pics

Hey Mario,
 Do you fabricate your trap door hinges or do you buy them?
I am fabbing a pan and I like the design of your trap doors.
Thanks
Duane