I have a 1984 elky with a 305. I would like to know how many cfm of a carb and what kind of carb would be a good replacemnt for a daily driver. I was looking at 500 and 600 cfm edelbrock models. Also should I go ahead and put an intake on while I'm at it, if so what is reccomended. I would like some more power, but realibilty and mileage are also key factors. Also would my stock igniton work with the new carb.

Thanks a lot

A dual plane manifold will give the best overall performance for street and daily driving. Edelbrock RPM, not the Air Gap, is a good intake. The AirGap is a taller manifold and could create a problem with hood clearances/air cleaner. The RPM Air Gap is a great intake though.

305 if it has been performance moded then 650 - 700. I have the Carter (Edelbrock performer) and I would go with a Holley if I did it again. I just don't care for the carb that much. Its alright but it lacks a little in my opinion. I don't have a 305 I have a 383 with the 750. It is cammed for about that.

If you haven't moded the engine then 600 is as big as I would get and that could be too much for the heads and cam but you can jet it down some.

I would use a 600cfm carb, I perfer Holley and have had good luck with the 650 I have on my 72 Chevelle. As for an intake I think the Eldelbrock Performer would be a good choice, it is a dual plane intake and is a low rise manifold so hood clearence should not be a problem, the Performer's Rpm range is from idle to 5500 rpm which would make it a good stock replacement intake but the design of it will help improve horsepower and torque.

I have a 1984 elky with a 305.... I would like some more power...
There is no aftermarket part that simply bolts onto the outside of that anemic LG4 305 to increase it's stock 150HP. You can put a new Edlebrock dual-plane intake and Holley 650 on it but it'll still be an anemic 150HP LG4 305. Keep the stock setup and save your pennies to buy a new 350.

:mrgreen:

Hey Ernie, no aftermarket parts that simply bolt on? How bout a street blower or better yet a 8:71 blower and then we'll all stand back and watch the fireworks. :evil: Just kidding, save up some moolah and do it right the first time, build yourself a nice 350 with some aftermarket parts, just bolting on a carb and manifold to that 305 isn't gonna make your Elky a screamer.

Hey Ernie, no aftermarket parts that simply bolt on?
Well....there's always NOS. http://elcaminocentral.com/users/elcamino/grenade.gif

:mrgreen:

I would like some more power, but realibilty and mileage are also key factors...........

that is what he said how can you suggest a engine that is 45 cid bigger if he wants descent gas mileage. especially with gas prices like they are. :-(

Just my 2 cents............. :?

With the 350 you get reliability, power, and a whole lot of "fun factor". So, if gas mileage has to be sacrificed, so be it. Three out of four ain't too bad. :)

:mrgreen:

A properly built 350 will outperform and get better mileage than a stock 305. I vote for the 350 too....better reliability in the long run.

BRAND NEW GOODWRENCH 350S ARE GETTING VERY CHEAP NOW TOO.
10067353-BRAND NEW GOODWRENCH 350 DEALER COST $1450