20r carb

[Needmorepower]

i'm trying to decide what carb i want for my 20r. i can't choose between the weber 38, holley 390 (4 bbl), or a set of side draft carbs. what are the pros and cons of each performance wise. i'm not too concerned about fuel economy, just power!

[stepho]

With money no object, get a 22R-E manifold, increase the size of the 22R injectors and add an aftermarket computer. Not sure if the 22R-E manifold fits the 20R head. Even better if you have a 22R bottom end with a 20R head (20R has smaller comustion chamber whichraises the compression ratio).

Second best is a pair of Webber 45DCOE sidedrafts but the manifold is very hard to find. Maybe Redline has something.
A single 45DCOE is also good and more suitable for the street (and still hard to find a manifold).

I hear good things about the using a single Weber 38 downdraft with an adapter plate

I love Webers, so I'm not very familiar with Holleys.

- Stepho

[Needmorepower]

i originally was going to go with fuel injection.....but there's just something about a carbureted classic.....

[DCM]

The 22R's port shape is square vs. the 20R's round intake ports, so it won't work.

Best bang for your buck? Yank the 20R and drop in a carbureted 22R, any year. It makes more power than the 20R, and bolting a set of Webers or even the Holley 4bbl and a bigger cam will really wake it up.