Originally Posted by toneh
I come from I suppose what is classed as old school , tune by driving , general feel , performance and common sense , don't start winding everything up to the max ,
I don't know what to say , all I can think is if it's not right I'm sure it would show somewhere , I've never used wb on any car or motor ive built (turbo or n/a) and never had a problem , but there's always a first time for everything
Even "old school" tuners still generally use an EGT to get an idea of the combustion temps. I've never heard of any tuner, old school or not, going by butt dyno and exhaust soot to judge how well it's running.
It may well be running perfectly fine, but I wouldn't risk it. Injectors are one thing and are relatively easy to scale, but as soon as you start swapping the MAF housing, etc., all bets are off if you don't have a wideband to check open loop.