I would like to put a 4 barrel Edelbrock card on my 2 Barrel 289 and my question is how difficult of a task is it to do this? From what I see I need to take off the intake manifold, obviously and change it to an edelbrock one and also remove the valve covers and distributor. What I am worried about though is tuning the carb from the two to a four. Is this going to be an issue and also should I change the camshaft with the carb or is this not necessary?