Carburetor, what to use?

[dowditjr]

So I have 2 options to replace the carter Carb on my eagle, i have a 650 edelbrock or a 750 holley. Do you guys think both of these would be overkill for the 258? lol If so I'll just get a smaller one down the road to put on there.

[priya]

I think both would be overkill.  I have a 390 cfm Holley on my 258 and it works very well, really snappy acceleration, idles super smooth and good gas mileage.  Even that is more cfm than a 258 needs.  When I first put it on I couldn't get the idle below 750 rpm, I had to take it off and loosen the idle screw on the secondary throttle plate, it was idling on that alone at first.

[dowditjr]

hate have extra parts and nothing to use them on lol i thought id be too much

[carnuck]

The 650 Edelbrock can be down jetted to work with the 258. Works even better if you cam it (I put a Baja Beast cam in) In fact, I still have the whole jet/needle kit in my parts for sale collection (I found it AFTER I bought another).