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					Originally Posted by  Whizbang
					 
				 
				whats the advantage to the 929 mc/master. also did it require modification to the firewall? 
			
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 1" bore MC versus 7/8" on the N/A MC and 15/16" on the TII MC.  The idea is less pedal travel for a given amount of braking.  No modification to the firewall but the N/A booster can't be used.  I've read the TII booster can be used but I got the 929 MC and booster together so I used it.  Just had to switch over the clevis for the brake pedal and modify the proportioning valve bracket a bit.  IIRC, the N/A booster is a 8" single diaphragm, the TII is a 7-8" dual diaphragm, and the 929 is 8-9" dual diaphragm.