Also bud not to rain on your parade but my FRS which was a 1.8lx 4dr too start off when it had original 1.8 lx running gear in before I converted it had, K&N 57i kit,Cams and veniers, double valve springs and head work(ported and polished) bigger leads,tubular manifold,s/s exhaust 3" and a few other bits and it pissed over st170's but after 100 they would pull on me and it only did an accurate 134mph flat out(no I never wasted time or money doing this car I got it this way to convert too FRS) so you speedo may have showed 140 but car certainly didnt do that speed!
WES