Got ripped off. Looking for a new idea for the inside of the engine. Stroker maybe?

Intercoolers are never 'required' on a turbo car, and many have not had them, both production and one-offs. It is there to cool the air and allow even more to be packed in the cylinders. If you are going to stay in the 8-10 psi range, the heating is not typically all that bad anyway.