Thread: Red HOT Headers - Literally

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Thanks. I'll put the larger ones in. I need to see what size they are, I don't remember.

I've been fussing with getting the lean vs. rich setting on my carb. It had been running rich in the past. But, I think I am definitely lean.

I'll post back how that comes out.

I'll still be watching here today for more comments.

BTW, lt1s10, have you experienced the red hot headers when you ran lean?

Of course, based on R Pope's posting, I could be rich.

If I could get a reading from a shop, I'd feel better.

[EDIT]
I just called Holley and spoke to their tech dept. They think it is rich. They gave same symptoms for red hot that R Pope did. They suggested advancing my timing. I'm going to check out the timing. and I'm going go change the jets to larger, and see if either of those fix the problem. If not, I may try to figure out how to lean it up and see what happens. Not sure how to do that, other than going to smaller jets.

By the way, another tidbit of info: my engine is tending to run a little hotter. I think that also points to lean. (Gee, there should be and easy way to tell.) Oh plugs...brand new, and maybe 13 miles on them...they are white on half of the porcelain, and med brown on the other half.