if you think its an air leak you think than get some brake parts cleaner in the aerosol can and while running at normal idle speed or what ever speed it will run spray it in different places on the manifold but not straight into the air cleaner or carb because it will stall the motor out but spray it around the intake and if there is an air leak than it will change the idle speed of the motor or make it stall that is how you know if and if so where the air leak is.
the edelbrock website should have that info.
The firing order is the same.
I have never seen a cast iron edelbrock intake so I would think not.
25 ft./lbs.
Chevy 265, 1955 -56. Want to sell it?
Or from autozone you can buy a quadra-jet to standard adapter plate if you don't have that edelbrock or if you have a holleythe intake manifold is hopefully what youre talking about and the answer is noAnsweryes you can. if you have a stock intake manifold, which uses a quadrajet carb, you can use edelbrock part number #2696 which you can buy from summit racing (www.summitracing.com). it allows you to use an edelbrock performer square bore carb on the stock quadrajet manifold. for that motor i recommend the edelbrock #1406 which you can also get from summit.
25 ft./lbs.
10-12 degrees
25 ft./lbs.
Here is the installation instructions for the Edelbrock Performer aluminum intake manifold for a Ford 351M/400...hope it helps out. http://www.edelbrock.com/automotive_new/misc/tech_center/install/2000/2171.pdf
I put an Edelbrock Torquer manifold on my 302 in a 1977 Cobra II Mustang , it didn't have a back water jacket and later my stock heads warped ( I SUSPECT that was the cause of the heads warping )
A 2-plane manifold such as the Edelbrock Performer or similar would be a good choice.