I'm building a Boss blocked blower motor (331 or big bore 347) for my car this winter and am looking at a set of Victor Jr heads. I am looking for 500-550 rwhp and will be running a Vortech blower pushing about 10 psi. I still want to have some low end torque and am wondering if Victor Jr's would be a good choice. The other options I have narrowed my search to are AFR 185's or TFS FAC 190's. Thoughts please.................