[fastd]

my experience has been that most "pros" don't do a very good job at tuning...they change the jets once and "it's tuned".

having my own O2 sensor has been essential in tuning my carbs.

so nice just to have it perfect all the time with my EFI setup though. it fixed all of my drivability problems: fuel boil, hard start, slow cranking when hot, leaness/richness...such a relief to finally have it all right.