i apologize ahead of time but i did not know where to post this thread cuz it's prolly in the wrong place..... every camshaft, stock or aftermarket has a marking on it for example on a GSR intake cam there is an "a" somewhere between lobes, and an "m" on the exhaust cam somwhere between lobes, now does each type of camshaft (gsr, ITR, CTR, LS,) have diff markings, do they ever repeat, and if anyone knows what kind of cams have a "H" marking on the intake cam and a "A" marking on the exhaust cam....thx

 

anyone?