05 with HMF have jets?

[stang9gt]

I bought an 05 that already has the HMF slip on. Is it jet'd to match the pipe or is that something you do not need to do for a slip on? It runs perfect, just wondering if the jets have been changed or not.

[Rancher2005]

if you say it runs fine, chances are it has been rejetted. By running fine I assume, it doesn't hesitate, bog, or have lean spots. Take a look at the plug, or to be more sure, take the jet out. I'm not 100% sure but at least for an '03 stock main is Kehien 148.