Re: 4 brl manifold or not?
There is a good chance you will. A lot of factors are involved....and even though you are keeping the 2b, the velocity on the 4b may actually be less, thus hurting low end.
The best comparision is to think of a water hose and that bucket you want to fill with water. Use a small diameter water hose and you have to run the water pressure and velocity up a lot more to get the same rate. Use a bigger water hose and you can slow the water down.
In simple terms, we want low restriction, high velocity air flow for best low end performance. For high end performance, guess what, we want low restriction with high velocity. See the problem? How do you get both with the same intake manifold...and you must admit, the designers have done a pretty good job. But in your case, I think you will be asking too much.
You may have heard the ol'e saying about racing.."How fast do you want to go? How much money do you have?" At the same time, don't confuse common sense with cheap. Some common sense things can be cheap....and bigger is not always better.
84CJ7, 3"lift, 32"BFG, 4.10's, R/ARB, F/Detroit, Onboard Air....89 Cherokee - New Project
They say we learn by our mistakes.....I guess thats why we are all so smart.