crankshaft gear issue

Get a Rollmaster set. We had the same issue with a comp bottom sprocket on a different engine SB Chevy . The customer bought the timing set. We tried a rollmaster that was here for a different engine and it was snug enough we could not push it on by hand without some force. So it was not the crank.

Hopefully these parts will start to be made in the USA again after Jan. 20.

You don't want to install anything that is loose on the chain set. They do make different length chain sets. What ever you do do not use a tensioner. They were designed for the mopar 6 cyls when the had an issue with chain slack to quiet the rattle. They only take out the slack on the loose side. The pull side of the chain will still be to long and just stretch even more throwing out the cam timing

My race engine had a Rollmaster and we will reuse it on one of our stock engines . It was as tight as the day we put it on 8 years ago