Timing request 100 shot 360

Reading the same type of posts on how fat the factory jets were is suprising.
Why have they not reposted leaner tunes?
Is there possibly a safe factor built into the old fat tubes helping keep you out of the lean territory in the event something went wrong?
Looking forward to p/u an a/f ratio assy. I'm interested in that w or w/o spray as it's just sounds like a gr8 idea.
Totally still learning here. Lots of studying
I believe several of the nitrous kit manufacturers have leaned out their recommended tunes, they are just not keen to tell their customers how off they were. As stated above, too fat can be just as bad as too lean, and I think the manufacturers realized their "safety margins" were too big.