Ouch,sorry to hear about your son in law. Actually came here to comment on your posts,on the stock cast iron intakes. I consider them,really damn nice size wise, compared to the other three's smog stuff. If it's paid for,why not use/try it... ( my head porter was handed a old BBC GM factory square port aluminum dual plane. The weakest port( not tweaked at all) was in excess of 360 cfm@ .700 lift-28 inches...