If the early P01 computer had flex fuel with IAC drivers the only known OS that works is from like a 2002 Tahoe and I thought those only supported 2 bar OS upgrades.
The later DBC P59 computer from like a van can have 3 bar OS upgrades but the resolution on the VE table is horrible. Instead of going up by 5kpa or even 10kpa values they are 20kpa, which really sucks for fine tuning. You'll have a VE that goes from 30kpa to 310kpa going by 20 each, so 30,50,70,90,110 etc etc and you miss everything in between. You can still make it smooth but it's not as precise. On some operating systems it was better to stick with a 2 bar OS because the 3 bar made it worse to be super accurate.
Were those manifold bolts cheap?
I always buy them from Napa because they are such a good deal there. I think it's 10 bucks for the box of 12.
