i read that a pr3 is also a type r integra and also a itr head, i found out how to find the year the head was made, bu ti havnt had a chance to look at the car since then, but i will see it this afternoon

and do you know what kinda compression this should have, i know 185 is new on a sohc but im not sure about a swap like this

also this car has something on the shifter that when u downshift you have to push the clutch in and go to the gear lower than the one u want to go into and then u can go to the gear u want to, some kind of safety feature i guess to stop u from stripping an grinding gears, heard of it before?