Hey I’ve been where you’re at and even after buying the aftermarket bushings I still had to make them smaller to run over 20° initial on my old 408. I don’t have a lathe so I pinched one on a bolt and chucked it in a drill then went to town with a dial caliper and some 80 grit sandpaper. It took a while!
Luckily I have access to a lathe or two at work. Chucking up something that small may be a problem, but I can come up with something.
1969 Dart GTS 340 1969 Super Bee X9 N-96 1969 Coronet R/T X9 N-96 2015 Dodge Dart GT 2019 Ram 2500 Big Horn. Looking for the original block for my Bee. The last 4 are 7449