I have a friend that is getting tired of his 4bbl Holley on his CJ7. After doing a search it appears that a good and reliable carb for the 258 is the 2100. He currently has a 4bbl intake on it. I know you can get adaptors but will he experience any flow problems to any of the cylinders? I found some vague answers for V8's but not for the I6. The jeep sees mostly street duty.