stupidfast, just a couple questions about your buddies heads, if you dont mind.
Where'd he get his heads, ported at?
How was the quality?
How much did cost?

thanks,

 

We installed Z06 springs. The heads are off of my old 5.3, I had them ported by a local guy.
The 4.10s were installed today. It really helped the dead spots of the cam, low rpms. It will be about a month or so until the converter goes in.