ProMax 66 in either the 16 Stainless Steel or 13 SS housing would be great. The ProMax 66 Kit part # for the 16cm housing is 2666467LB for an LB7 and for the 13cm it is 2366467LB. With a big fuel tune the 16cm SS will spool very close to stock. The 13cm SS will spool a little quicker.
This...