Hi All

I have a IV which had no history with it so I'm just trying to find out whether anything has been done to the engine.. The compressions much higher than the norm but thats all I know. I have a pic of the cams which have many marks on them but cannot find out whether they are standard/ who made them etc etc

Anyone have any ideas? The intake has the letter H one end and 2 3 the other. The exhaust shows 7 2 and a small A

Any help would be great

 

stock 4 cams