Which Stroker for 400 and 7-8lbs boost on E85

The car is a 72 back halfed duster. I may put it on the street some day but it is mostly a track car. The blower is the 1d1 design procharger. (I believe that's the design model number but its at the shop and I will have to double check that. Its not designed for big block mopar I will need to do some fab work to make it work. Its a local fb marketplace buy.)

Okay going to see what the chevy guys do... Those forums ought to be interesting. :|