I have and 1987 Honda Civic 4 door that I am using for a Mini-Stock that I race at local asphalt circle track. Here is my problem. I have the stock D15A2 1.5L carbed motor that has the short block rebuilt but it has a 2 valve head on it and lacks power. I have a D16A1 DOHC head that is in perfect shape that I would like to put on it but the intake manifold does not line up. What would be the cheapest way to get that combo to work. Do I need to convert to fuel injection or is there a carbed manifold that I could use on that head. That would be my first choice...carb on the D16A1 head. If I need to convert to fuel injection what exactly do I need to convert over. Please help!!!