My 1969 340 is 40 over, when I pulled the motor to freshen up the cylinders still had a fresh hone so I just did the heads over new gaskets painted and back in, but I did go with a new comp cam xe268h lifters rods and rockers. I just lined up the dots no dial in. Without taking the engine to far apart what is the easiest way to tell if the the crank was stroked and would that mean my cam needs to be dialed in differently. I have been fighting with timing, and carbs forever. It used to sit and spin and go sideways when it hit second now it’s just flat somewhere in the rpm range no matter what I do , plugs are always rich and I can’t ever get it to to much timing where it kicks back or is hard to start hot it just starts to drop vacuum and run worse. any direction would be great Ty guru’s