Recommended 4bbl carb for stock 318

Backfire through the carb is ignition before the valve is fully seated. Makes sense. Right? Easy to remember if you think about it.

Just noticed in the mockup the transmission's 'kickdown' is all the way back. In actual use, make sure its forward so throttle opning increases pressure in the transmission throttle circuit.

Experience is a good teacher. You'll get there!