[stangdesign]

I was about to blow a hole in the back of my head trying to figure out where this exhaust leak was coming from. It turns out there are 2 holes in the back of my heads blowing out exhaust. I couldn't feel if they were threaded or not due to temp., but the motor is an 87 lincoln roller 302. Anyone know what these holes are for? Thanks - Chris

 

[stangdesign]

yup! No crap! Ok, so I can just plug them? Do they have any advantage? I was hoping they were for O2 sensors! I would have had an efi setup on there by the weekend! thanks - chris