There are three different designs. Please specify which one works best with your engine! To determine this check the drivers side engine to see if there is a triangular front motor mounting boss with 3 equidistant 3/8 threaded holes that is not being used. If you have this, specify the Triangular Bracket. If you do not have this or it is being used, Specify the Clamp Style Bracket. Get the new style adapter that mounts to your choice of two of the oil pan screws. We also have a special design for Fenton Exhaust Manifolds. Go to our website (devestechnet) and the How-To section and Full Flow Oil for more information. If your 235 is modified for Full Flow, we have a solution for that too! The Clamp Style bracket mounts on the upper frame rail right across from where the Triangular motor mount boss would be located, just aft of the Generator or Alternator. For inquiries, contact Deve at speedprint. Com. Don’t forget to check out our other Kits for the 216/236/261 Engines! HEI using your Stock Distributor and our unique PCV System. This system fits beautifully on most TRUCKS of this era and earlier, however there will be some fitment issues on Cars because of the Adapters mounting differences. This listing is NOT for dual exhaust! For dual exhaust, you must order from the website.