ok this situation might be a little strange for many of you but i needed to get a short block for my 97 ex and a buddy had a d16a6 so basically what im doing is a mini me swap, i wanted to know what modifications if any are needed on his block to put my head on. I've also read that the compression ratio will rise so what power output would i be looking at getting? i've seen 120 to the crank but why would the power be less with a higher compression? and also will i need to run high octane as a result?