318 carb questions

Whoopsie said
First off, I apologize for this question and the no doubt countless others in going to ask in the near future. Besides changing spark plugs, filters, and oil, I've never done anything (nor do I know anything) about engines. But I'm excited to learn.

I'm finally getting down to taking apart my 318 to, at the very least, replace some gaskets and the carb, and most likely the heads. I've decided to keep the 318 for the immediate future.

The car (68 Valiant) already has headers and duals. My first instinct is to swap out the 2bbl for a 4bbl, but after searching around it seems like some folks are saying it isn't worth it. So question 1 would be, should I go 4bbl or a newer 2? If I decide to go with 4 do I have to get a new manifold or will the stock one work?

TIA

A 500 eddy works well on a stock 318.
As does a 390 holley . You can make bigger carbs work.. but they won't be as ideal at rpm you do most of your driving at.
When you change all the gaskets, drill extra holes in the oil filter plate for flow.
Use permatack 'in the can' on the timing cover, water pump, oil filter plate gasket,gasket to oil pan ,intake gasket to heads with/and Black rtv at water cross overs and rear main seal. Copper rtv on exhaust/header gaskets.
Good luck and use a torque wrench on things like heads,rods,mains. Torque by feel the rest. Once its together, use a dead blow to smack tight the crank bolt. A few good smacks works.