sell the gsr you are building, and boost the sohc...... you won't have to buy axles, mounts, shift linkage, etc that goes with doing a b series swap..... d series motors/parts are cheap if anything messes up, and b series just flat out cost too much for the power you're trying to make.

If you still want to go b series, let me get your d16z6 shortblock, lol.....