This is a different car then my first post this car is a 383 with a t-trim vortech lt1 car runs about 14-15 psi the customer said it made around 500hp then brought it home one week later opti spark went out so they install a new opti spark once getting it to run again they bring it to the dyno and have a bad dip at 4500 and loss of power do anyone think this is the opti spark doing this dip
like i said boost is at 14-15 psi timing on about 20 with good gas
thanks for any help that can be given
here is the dyno sheet
like i said boost is at 14-15 psi timing on about 20 with good gas
thanks for any help that can be given
here is the dyno sheet