thanks for the words of wisdom as always denny. the motor is stated by previous owner as a 12.5-1 compression. it cant have over 2000 miles on it, the reason i am replacing the cam is it is a .680 lift drag cam and is not street freindly at all. thats the only reason i will be cracking it open, but i want to inspect it thouroghly before it goes back in the car. and that will include pan and head removal, then mount it in the anglia and back to the mustang. it might already have ARP's in it anyway, but i will get new fasteners if the cash flow allows me to.