hey fellas and gals.im new to the site but i've seen theres alot of very knowledgeable people.ok enough smoke blowing lol.my question is my truck seems to flutter my timing is right i have a good vaccum dang its just a single barrel rochester. i''ve taken it apart cleaned it.i dont know whatelse to do.it almost reminds me when i had to replace my intake then my head which is less then a year old.helpp any suggestions comments answers.thanks