Ok, I have been going through the process of degreeing my 270s and in order for them to clear the pistons i had to grind the cam gear key way and these are the numbers ive come up with for the passenger side, just looking to see if anyone can give me any advice as to whether this will be ok. Straight up for int center line is 109 and exh is 117
exh valve
opens .050 47 bbdc.......... -.050 = 144 +.050 = 73 - 109center
closes .050 10 atdc ......... PTV closest at 5 btdc .045
int valve
opens .050 0 btdc............. -.050 = 83 +.050 = 151 - 117center
closes .050 56 abdc.......... PTV closest at 5 atdc .040
exh valve
opens .050 47 bbdc.......... -.050 = 144 +.050 = 73 - 109center
closes .050 10 atdc ......... PTV closest at 5 btdc .045
int valve
opens .050 0 btdc............. -.050 = 83 +.050 = 151 - 117center
closes .050 56 abdc.......... PTV closest at 5 atdc .040