Well if you do rockers or a cam ZZP is the best by a mile.
Intense dosen't really put alot of r&d into the n/a L36.

You should probably do some PEMs, ZZP ER rockers, port match the LIM, and try to do the DIY TB shaft shaving.
Thats after a high flow cat and a good intake setup.
Worry about pcms later after you install all the mods.

i did a baseline last year dead stock of 16.39 and the 5 may i ran 15.81 whit the same car same weight same gear ratio and learning to drive ive been drag racing at that track since 1973 .the mod done are 180 drill stat 41-932 (colder plugs) and sheilded rice pipe and kn 4750 i think these are the first mod to do on a L36 and that cheap to do below 200$ if you do it yourself
those mod gave me 3 MPH and more that half second on a 1/4 miles drag and i had no traction