More than likely that motor came out of a Chrysler or Imperial, not a 1966 Dodge or Plymouth street wedge tsk
That being said it will be a low compression, under 9.25 to 1 ratio, low intake manifold and a small AFB, nothing to get excited over unless it was a OEM M.W. replacement warrenty (SP?) casting that they stuck in a car to move the block out of inventory, the casting number on the side of the block will tell you that scope
If you have the choice between that motor and a Hi Po 375 HP 440 out of a 1967 to 1971 B body buy the 440 up twocents

Last edited by Cab_Burge; 10/07/18 07:44 PM.
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)