I recently installed a timing chain and gears on a 67 289. Before I installed the chain and gears, I was able to easily turn the motor over manually using the big bolt on the crank. Since I installed the new chain, I can no longer turn the motor over using the same big bolt method. Did I screw something up? The motor is out of the car so this would be the time to address this if this is an issue. Also, there is very little to no slack in the chain.
Please help!
Please help!