i recently bought itr cams but am not sure if they are real..i know to tell id have to check the indicator rings..they are 98..they have 1 engraved ring and 2 protruding rings on the intake cam..so since they have these marks do they automatically mean they are itr cams?..the reason i ask if bc when i compare them to gsr cams..they seem to be very similar in size..you know how each lobe that sticks out comes in 3;s..the middle ones on each lobe are slightly bigger on the itr than the gsr's..other than that..its basically the same size..is there really suppose to be a huge diff in size or slightly in lobe size..thanks !
i know id have to measure but i dont have that measuring tool..

 

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anyone?

 

there wouldn't be a very noticable difference on visual inspection... what you describe (the middle lobe being a little bigger on the ITR cam) is basically what it should look like. Sounds like you got the right cams to me.