Quote:

My TTI headers got toasted....Don't know whether to recommend just making it richer to start with, but the idle mixture setting from the stock heads was enough lean with the new Indy heads at idle to make the headers glow in short order, like real fast! So my headers are cooked.



Mine too when I first started my 440 back in 2005. It's hard not to get them cherry red when you are reving at 2000 rpm for 20 minutes. Use junk headers first during break in. My