I just got a 1972 C10 with a 350 and 3-speed transmission. My clutch pedal has way too much play, so I was going to adjust it today. When I was under it, I noticed it was adjusted all the way out (I probably need a clutch, but I'll take the inspection plate off to verify soon). The concerning part is the front of the adjuster is almost right against the header. I've only had the truck a short while and I'm slowly bringing it back to life. Is this most likely an after market header because of the spacing? I can't find any markings on it to say what it is.