Ok here is some info about my car first. 1964.5 mustang 289 auto. problems are that car is putting water in catch can at high rpms and engine has a miss on one side and idle around 1200 rpm car has a 180 degree t-stat and will get up to around 205. has 16 lb. cap. could i have blown a head gasket? i just put engine back together for restoration and have around 120 miles. i had the heads redone. has new waterpump, t.stat, radiator,all hoses. engine does not overheat put on manual gauge to check temp. does not put water in oil. could head be cracked? engine is bored .040. if drive around 65-70 car stays around 195 degrees. the guy that works for me says he thinks that the head is cracked and letting compression into the cooling system because there is so much pressure on the hoses. thanks in advance. i know i just jumped around on things but typed as i was thinking