the inlet for the t-stat is to the passenger side of center front in the block on the top. the t-stat housing will bolt right to the block like a 460. it may be covered. take a pic of the front of the motor from the top and post it.
i would get a t-stat in it 150 is much too cool to run the
oil at.
any way if you have the edelbrock performer 2v heads and a mild cam you are probably in the 320 to 350 HP range. if a single plane intake maybe less.
the dual plane intake would be most desirable on the cleveland.
