EGT's - what's the difference?

[chwhit]

I put isspro guages in my truck yesterday, I put the pyro probe on top of the manifold for cylinders 1-3. I've heard most people say that 4-6 cylinders burn hotter, just wondering if anyone knows the difference of heat between these locations so I know when to back out of the throttle or downshift.

 

[mberry]

I can't help with the temp differences, but I recall it being caused by the design of the stock exhaust manifold being more restrictive on the back half and the worst at #6.

 

[LEPage]

I can't help with the temp differences, but I recall it being caused by the design of the stock exhaust manifold being more restrictive on the back half and the worst at #6.

345's are great but how 'bout a 4B in that '70 Binder?