twins?

[Townsend600]

I am currently running an HTT 64/71/13ss. I am looking to get a little more air but would still like to be able to tow. I have a 97 12v. Sheid pump 550cc's of fuel, scheid DV's, Scheid street cam, port and polish, hamilton springs. mahle pistons. and arp studs with DDP4 injectors.

Would my 64/71/13 and a s475 96/88 with 1.32ex housing make a good set of twins. What kind of air should it move. and what kind of HP gain should I see

 

[White Knight]

I don't know how well that will tow but it should move enough air to get into the 700s.

You might look at the smaller 83mm turbine wheel for the primary, I've read its much better for towing. And you could always go with a little smaller secondary if you wanted to gain spool without losing any power.