Hey Bro in My book I would put ( if You don't have one already) a d16a6 in it BUT!!! put d16a1 Pistons in it Hear Me out.

You use a d16a6 Block/Head/and Head Gasket (0.0480000 in. Thickness)
Now Stock the d16a6 makes about 115hp and has a Conpression Ratio of 9.109391693661235 a.k.a. 9.2.1
But put the d16a1 Pistons in and BOOM!!! 11.346143017512087 again a.k.a. 11.3.1
See the d16a6 (PM6) Piston has a -3.40 Displacement where the d16a1 a.k.a. ZC (PM7) Piston has a +7.2
So You see the Bore is the same in both Motors but just the right Piston can make that 115hp in a 1/4 mile hang with or beat a b16.

Well I hope it helps You out Bro and good luck on whatever You go with.