But what about the 3 different reasonably priced and readily available 8 port 181 cast iron heads? They make 140 HP from a 181 ci 4 cylinder. That would be equal to 190 HP from a stock 250 six. At least one of them uses 1.95 intakes and I think 1.6 exhausts. All head bolts and push-rods would be in the right place. Water jackets line up. The cross flow "Iron Duke" head is thin and fragile and restrictive, so I hear, buy it will fit. Way easier and cheaper than the V8 option. It would solve the Siamese port thing and make MPI a real choice. Just thinking. Beater
