dual quad intake manifold help!!
 

Im wanting to buy a dual quad intake manifold for a 360 engine. Ive been searching around and can only seem to find them for engines above a 396. any help in locating an intake manifold that would fit is appreciated. As a side note a smarty pants on yahoo answers said in order to do this all i have to do is
"You'll need a "dual quad" intake manifold. Install that. Bolt the carbs up to it. Add a "T" fitting to the fuel line, with a little extra line to feed the extra carb. Replace the throttle cable (or rod) with a multiple carb setup. You may need to replace the fuel pump to up the pressure a little."

anything he's missing?
i was told the engine produces around 300 hp with a 4 barrel (im sure its more like 275), any guess to what it'll do with the dual quad set up?
thanks

71 -

Try Summit.

http://www.summitracing.com/parts/OF...n/?prefilter=1

This one is for a 318, and "should" fit a 360, but check first.

Your other options are a 6V (3x 2V) or a tunnel ram.

Also, if your engine is running correctly with a single 4V, going to 8V may look cool, but you'll probably LOSE efficiency.

The reader's digest instruction are basically correct - getting it to work, may be another story...

Archer

Unless you have a VERY aggressive race engine with big ports, valves, cam, etc, you MAY NOT get any more power or possibly EVEN LESS power from what you are calling a "dual quad" manifold over a WELL CHOSEN performance single carb manifold and carb.

You need to take a look at YOUR engine presently, what if anything you are going to change in the way of heads, cam, headers, exhaust, and take a REALISTIC view of it's RPM range, and go from there

WHAT are you running now for intake/ carb?

Frankly, on most mild street engines, it would be hard to beat the factory performance 340/360 4bbl manifold. The Edelbrock "performer" manifold is probably the closest thing to the factory manifold you can buy.

The mis -named Edelbrock "Torker" is not really a "torque" building manifold at all, but rather FAIRLY high RPM --it is completely wrong, for example, to put a Torker on a trailer towing rig where torque is exactly what you want.

The fact is, the old school "in line" dual quad manifolds are a thing of the past. Back before we had 700-900 cfm single four carbs, a pair of what was then available was one of the few ways to "get more."

Lots of good single 4 manifolds and carbs to do what ever you want. 2X4's have the cool look. Have a look here. http://www.indyheads.com/modman.html .
They have a good tech article on their open plenum design.
That Offenhauser has a nice heat well and crossover for choke operation, which is a plus for a street car. A couple of small vacum secondary carbs could be driveable and a lot of fun. The 6 pack is alot of CFM and can be tuned to do just about anything you want.
Edit: My good pal has a couple really small 4's on his 61 Impala 283, it's a riot to drive and stupid cool when you raise the hood.

Go with the six pack as its easier to tune.

thanks for the help and quick answers, based on your responses it seems like getting a dual quad set up isnt going to help very much the way the engine sits now, except in the looks department. so i guess ill look more into cylinder heads and possible the 6 pack.
Thanks again