An HX-35 is good to about 450hp. An Hx-40 is good to about 550-650, depending on if it's a 6 blade (550) or 7 blade housing. Tim's turbo's (google them) makes a turbine housing for them. There are some diesel places that do too. You probably could use a 12cm2 turbine housing on a 292. These are good turbos. No draw through seals though, so you've pretty much got one choice. Scrap the edelbrock carb and go with a holley. CSU carbs is who to talk to to get one set up properly for blow through. You are either going to have to spend some money for a proper carb, or spend some money for a turbo with seals. I recommend the carb.
