Most distributors have close to 26 degrees in them so it’s likely your initial is closer to 6 degrees. You need to bump that up to 14.
I mention elevation because I grew up and lived in Alberta just north of you. First thing we did to our motors was adjust the timing curve. More initial. Usually started at 14 and bumped up from there. At elevation the air is thinner and your motor runs slightly richer and you need to start the burn way earlier.
Break out the timing light and have at it.
Here’s a link on timing.
http://www.badasscars.com/index.cfm/...d=76/prd76.htm
Once you got your timing squared away and your carb working better then decide if it’s worth changing out your carb.
Also be prepared for how the ambient temps effect your tune. When it gets warmer you might need to tweak a bit more.