So, I'd jump to Plastigage or some other technique to set the clearance.
Amen on the plastigage!!! I followed the non-pg method in the manual and ended up with a seized rear bearing after removing shims to stop seal leak in my '52.
Matthew 6:33
1952 Chevy 1/2-ton 3100 Late '55 235/SM420/torque tube 3.55 Dalton Highway survivor (using original 216) www.truckwithaheart.com
