Not sure what engine U have - but the diagnosis is the same: Be sure you have the spark plug wires in the correct firing order. Remove the valve cover on the #1 cylinder side. Remove all spark plugs if necessary to turn engine over by hand. Turn the engine by hand until both valves are closed on #1. #1 cylinder will be at the top of the compression stroke. Remove the distributor cap and see if the rotor is pointing to the #1 terminal. If not remove and reposition the distributor. I would try this before assuming the timing chain is off. -----Original Message----- From: 'Bob Turner' via The 1962 to 1965 Mopar Mail List Clubhouse [mailto:1962to1965mopars@xxxxxxxxxxxxxxxx] Sent: Wednesday, June 21, 2017 9:34 PM To: 1962to1965mopars <1962to1965mopars@xxxxxxxxxxxxxxxx> Subject: timing I changed cams a while back. I tried to start it up and it backfires through the carb. Does it sound like I did not line up the marks on the timing chain right ( 180 ) out ? Is there any way to tell besides taking the timing cover back off? What would be a good gasket to use? Thanks -- -- -- Please address private email -- email of interest to only one person -- directly to that person. That is, email your parts/car transactions and negotiations, as well as other personal messages, only to the intended recipient. Do not just press "reply" and send your email to everyone using the general '62-'65 Clubhouse public email address. This practice will protect your privacy, reduce the total volume of mail and fine-tune the content signal to Mopar topic. Thanks! 1962 to 1965 Mopar Clubhouse Discussion Guidelines: http://www.1962to1965mopar.ornocar.org/mletiq.html and http://www.1962to1965mopar.ornocar.com/general_disclaimer.html. -- You received this message because you are subscribed to the Google Groups "The 1962 to 1965 Mopar Mail List Clubhouse" group. http://groups.google.com/group/1962to1965mopars?hl=en. --- You received this message because you are subscribed to the Google Groups "The 1962 to 1965 Mopar Mail List Clubhouse" group. To unsubscribe from this group and stop receiving emails from it, send an email to 1962to1965mopars+unsubscribe@xxxxxxxxxxxxxxxx. For more options, visit https://groups.google.com/d/optout. -- -- -- Please address private email -- email of interest to only one person -- directly to that person. That is, email your parts/car transactions and negotiations, as well as other personal messages, only to the intended recipient. Do not just press "reply" and send your email to everyone using the general '62-'65 Clubhouse public email address. This practice will protect your privacy, reduce the total volume of mail and fine-tune the content signal to Mopar topic. Thanks! 1962 to 1965 Mopar Clubhouse Discussion Guidelines: http://www.1962to1965mopar.ornocar.org/mletiq.html and http://www.1962to1965mopar.ornocar.com/general_disclaimer.html. -- You received this message because you are subscribed to the Google Groups "The 1962 to 1965 Mopar Mail List Clubhouse" group. http://groups.google.com/group/1962to1965mopars?hl=en. --- You received this message because you are subscribed to the Google Groups "The 1962 to 1965 Mopar Mail List Clubhouse" group. To unsubscribe from this group and stop receiving emails from it, send an email to 1962to1965mopars+unsubscribe@xxxxxxxxxxxxxxxx. For more options, visit https://groups.google.com/d/optout.