sr overheating, pissing coolant...help please

[mxsx25]

engine is pissing coolant all over the drivers side of the bellhousing on the transmission, i looked under the car and could barely see anything except a slight wetness at the back drivers side corner of where the head meets the block... im pretty sure this must be a head gasket but could you guys give me some ways to check for sure... also, motor pulls hard still 12lbs with the t25 so im thinking if its the head gasket than its just the corner near a water jacket? anyways, any help would be greatly appreciated.. im going to do a comp test tonight so ill update later