Don my Ck2 has the 4g15 SOHCcarb engine.My initial plan was to buy a 4g15 twin cam efi and keep it to the ck2 and keep the ck2 single cam carb to mine.But i have big plans for the ck2 end of the year so will swap the DOHC to the a72.Plus think of all the fun and power a that motor will produce in a rear wheel drive car....