Long term VHT Header Paint?

[Downey]

So what was the range of temps for different RPM's?

Idle temps vs. highway speed temps would have to be pretty far apart? 300 to 1200? ( If I'm asking for what may be proprietary information tell me so. ) I'm just always looking to add to my knowledge base.

With exhaust temps that high I'll have to take a closer look at protecting my F engine oil lines and the steering box.

On another note I bet the cost of doing that CARB testing was up way up there.

If I remember correctly, temps right out of the Head were 1600 degrees right off the bat, before leaving the property. Temps down at the collector were 800 degrees after a 2-3 block drive (before getting on the freeway), then ranged 1100 to 1200 degrees after a 20 mile freeway drive, 1100 idling at a red light, but then only 1200 driving down a street or highway.
The test was more time consuming than costly. We were able to do the test ourselves rather than paying the Fed Lab for doing it. We simply had to build a Header with mounting bungs every 2" for the length of the Header---cocky looking thing!!!