i was wondering if it will be ok to drive the supra for a while without re-tuing it after installing a vpc. i know that the s-afc and the vpc will need to be tuned, but is it ok to drive the car until i get a chance to have it re-tuned? can i just wire the vpc in and keep the settings zeroed out? i am thinking that it will become a little leaner after the install. should i richin my s-afc setting a little bit? thanks for any help, Rick.