Need to make by 67 326 more reliable while at the same time maintaining as much originality as possible. Want to put a new Holley 2300 2 barrel on it and keep the same intake manifold. Believe several places sell the manifold adapter to do this. Anyone out there ever tried this and if so, how has it worked out? Don't want to move up to 4 barrel as car was orginally a 2 barrel and want to keep it that way. Thanks in advance for any help and/or comments.