Thread: My old 390 Tbird will only run at 45 btdc???

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Sorry I haven't been back in a while -- other stuff going on. I found that it was actually mechanically off. Looks like the cam gear locating pin is mis clocked. I moved the chain 3 teeth. It runs great and has good manifold vac. Thanks for your help.

Originally Posted by birdland

Sorry I haven't been back in a while -- other stuff going on. I found that it was actually mechanically off. Looks like the cam gear locating pin is mis clocked. I moved the chain 3 teeth. It runs great and has good manifold vac. Thanks for your help.

Good to see you back birdland! And thanks for taking time to close the loop on what was wrong with your engine, and your fix.