Alright so I purchased a 1983 Camaro z28
it has a 350 punched 30 with a Holley carb.
When I start it it'll run and idle fine, I can give it gas and it'll rev up no issues. However when I put it in drive it backfires through the carb and stalls.
I'm pretty sure the firing order is correct, as I've triple checked. Has New plugs and wires and I've tried 2 different carbs that are known to work with the same result. All my vacums are hooked up too. This is driving me up a wall please help!