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repercussion's from over carbing usually are, bogging on acceleration, running rich, and poor fuel mileage
but I steal think that you can change the jet's out to a smaller size, and tighten up the secondaries (change the springs) and run it that way, may not be perfect but should be pretty dat gum close. JMHO
Thanks. Now I just need to find an intake. Is there anything special I should keep an eye out for? I saw someone selling a performer. Could there be issues on using a non Holley? It states natural square bore. Is there a possibility it won't allow the carb to match up right? Or are all fout barrel carbs the same bolt pattern to the intake? I know I have a lot of quetions, but asking is the only way for me to learn. That plus trial and error. I would just like to minimize the errors and enjoy the trials.
If the carb's too big, the engine will have reduced power at lower RPM. So when accelerating from a stop the engine won't respond as well as with a smaller carb, until you get up to higher RPMs. It won't hurt the engine, it'll just hurt the performance and possibly the mileage.