Seeing the plug hiding down in a hole would make you think it would require a different heat range...................But even the Eddy, and now the trick flows.........and i have not heard anyone make any statement about XYZ head needing a different heat range
Nor have I heard of anyone doing anything different about it. Let's be fair, people have been running OOTB Edelbrocks for a lot of years now, and no issues reported? Hmmmm……
P.S. - I just ran a plug in mine, and of course the same results...
