You should be able to get that Coupe into the low 15 high 14 sec range with I/H/E A good clutch and some Drag Radials if it's well driven ...
I have a buddy of mine with a Z6 hatch I/H/E , Exedy Stage 2 clutch on some Nitto's on HX's that I tuned he regularly runs 14.20's and has a best of 14.01... This may not necesarilly be extremely fast but for an almost stock Single cam it's def not bad at all
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