Not my reason to ask why just supply!
Kind of like this I got burnt on. View attachment 1715248646View attachment 1715248647 Zinc plated early Hemi hosing. Its all good he will neve get anything from F.... again!
I hear you on just supplying the advance they want. Maybe trying to match the original emmissions thing and running a 14.2 AFR at idle. I read about guys doing that either because they think lean idle is good or they just dont know. It will work. NOx may be a little high but whatever.