TTi shorty headers v ministarter

Hmmm, my negative cable runs from the trunk all the way to a lug on the driver's side fender well. From there I run the ground cable to the starter at the bell housing/starter case bolt. All new cable, clean connections/bolts. That's only a few feet longer than running the battery negative directly to the bell housing bolt. I also run a ground strap from the bell housing/engine bolt to the firewall.

It could be mine is running a bit hotter than yours. It is also high compression, and I think you said yours was a 273 running about 220 hp. My 360 mag dyno'd at 375hp. I noticed when setting the timing and checking at 2800 rpm those headers were cherry red. I'll put a heat shield on there and see if that changes anything.

I'll report back after the heat shield test. Might be Monday before I get to it.

Brian