my buddy is in the process of building one. he has 2 miatas, ones boosted at 14 psi with a t28, its pretty quick. and he is building a 302 miata now. its in the works but the motor has forged internals and some ported and polished heads with 1.7 rockers. ill try to get some pics of it but right now its just a heap of bare metal lol motors not in yet.