It all comes down to what you want torque or high revs, preferably for drifting i would go high revs as you are never really puttin around and you always seem to sit over 5000 rpm, if any of you guys went to the D1 drift meet at willowbank a few weekends ago you woulda seen 3 sprinters out of the 2 hatches there was 1 running a 20 valve and the other a stock 16 valve and he was doin a fairly good job of throwing it around and for the price of a 4age these days thats what id be doin.
I paid $700 for my 86 model twinky seca, most places charge that for an engine, loom and ecu