last time I had an n/a non coil pack car that I actually ran at the track( like 99-2000) it ran a 18.92 and I forget the mph, had 3.73 gears , 5 speed, a header, advanced timing, and 2 1/4 down pipe to a 2 1/2 cat back , was embarrassingly slow, ran it to do a before and after turbo swap , after turbo swap, bone stock 88 t-bird drive train, set at like 10 lbs ran a 15.92 and I forget the mph, now its running 13.50's consistently with basically stock stuff that has lots of tweaking and lots of boost, go with a turbo swap
you can build an n/a 2.3 that will run 15-14 in the 1/4 but it wont be very streetable at all , old boss had a pinto with a n/a 2.3 that would do it but it was a major pain to drive on the street and he had bookoo money and time in it