Thread: BBC heads, I have a question.

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Originally Posted by maddddog

Thanks Pat. Are you saying that the ports just didnt match up and that was the intended result? Or did some porting have to happen?

Thats kooky.

I have seen a lot of them for sale and in use.

Is it ok to run in the short term?
I can replace it when I find another better one.

yes it was made this way there is some fuel robbing going on in a intake but alot of times it not to big of a deal you just cross jet it by jumping up on the jets could be for this.i have used some tunnel rams and never played with port velocity by closing down the port runner in the tunnle ram i used the older weilands for the bbc and work very good . like R Pope said looking at the intake thats what they did stock. i can not you how good it work JERRY C could tell you better then me . they made the intake like this or if the rigth and left port runner of the head was in play in could add to the robbing to ? any time if it can be done you want the barrels of the carb to lay in line with the ports of the intake and different plenums shapes to . so carbs you will see on some intakes do have a twist or they cut the 4500 holleys in 1/2 to lay them over the intake ports more done with the big chief heads or big dukes /pro stock symmertrical port heads