faststang90 10 Year Member Nov 5, 2007 522 16 49 baytown texas Feb 7, 2011 #21 Feb 7, 2011 #21 its the only hole u have. all u can check is the stroke and if the rod is moving around then u are going to be off. u can look at the balancer to if its a stock one then its not a 347. there is not a good way to measure that with the head on.
its the only hole u have. all u can check is the stroke and if the rod is moving around then u are going to be off. u can look at the balancer to if its a stock one then its not a 347. there is not a good way to measure that with the head on.