Your thoughts of this?

Has me worried a bit because the 727 just has a shift kit from what I learned after speaking with him, As far as streetable, it is and as far as what I want to do is debatable. I considered a 440 stroker for my Signet and figured this might be its base motor but with a basically stock trans, I believe his times maybe exaggerated. So I figured I might as well ask you guys or your thoughts. I like the sound of a 500 inch motor yet would need a bit less engine weight for my Signet in order to drive the way it drives now.

Thanks for your thoughts and we''l see where it goes from here..