Hey guys, i finally replaced my intake with the aluminum one due to a crack. My question is, I installed a Napa 544080 180 deg thermostat and the temperature gauge is always right at middle between the H/C. Is the temp suppose to be colder? I can't remember but it seemed to be cooler with stock thermostat but not sure. Is the temp suppose to be right in the middle or cooler? I remember with my 91 5.0 when i put a 160 thermo it always sat near the "C". Please enlighten me. Thanks.