Carburetor suggestions for 318

YouTube has a couple good videos for the initial setup. Check it out.

I always like to bench test them,to see what I'm starting with. Starting with the factory jets,rods,springs is the best way to start.

There is a pump shot arm with 3 holes. Factory setting is the middle hole. You can get a bigger pump shot by using the farthest hole from the base. I've always had the best luck with the middle hole.

I have always had the best luck with the (orange) stock step up spring.

Get the A/F and idle set right first,and then you can get out there and play with the timing.