i have I/H/E and 6psi supercharger and VAFC2. im gonna put my exhaust back to stock. do i need to retune my vafc for that?

 

I would say yes...Because it is tuned for the custom exhaust that you had...Not for the stock exhaust, correct?

 

yes its best to tune after any changes, especially when when you have fi

 

my car was tuned and it had an afc and some other mods. when i bought the car the preivous owner made it pretty much stock. do i have to get my car tuned and if so can i just take it to a mechanic?

would this cause my car to run rich because i have had a good amount of black soot on the rear of my car.

 

i called the dyno shop and they told me that its best to dyno tune the car with stock exhaust.

for you business, i would dyno tune that car too so that the car wont run too rich.