...circulating.
On stock motors, checking the EGT at the exhaust manifold can be tricky and "iffy". On our '66 Newport 383 2bbl ('70 OEM Holley 2210 replacing the orig Stromberg WWC-3) and our '72 Newport 400 2bbl (OEM Holley 2210), with the idle speed set in gear, a/c running, at a speed...