My point is that you will be better accepted if you do provide more answers to these questions and provide as much information as possible such as pics, graphs, and etc.
Ah one point I forgat to make on your comment of a 300ZX versus a Supra. "Cheaper to Mod" hey thats bad news for you as a vendor isn't it. You should have the attitude of yeah a 300ZX are great you have all these cool upgrades you can get to make you go faster.. :-)