hi, my 88.5 sammy is burning oil pretty bad. I just did a head gasket and it went together easy. I can find a 1.6 geo bottom end easy around here and have seen adapter kits on ebay. could I used my 1.3l head on a 1.6 block so I can stay carburated with the weber? would there be any power increase? the samurai is gutless. help?