75gmck25
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    • 75gmck25
      75gmck25 replied to the thread hei vacuum advance stop plate.
      Base timing on a stock SBC was usually set to about 4-8 degrees BTDC (measured at about 650 rpm idle, vacuum advance line disconnected...
    • 75gmck25
      75gmck25 replied to the thread AC control vacuum lines.
      They usually sell it at the parts store in two sizes - GM hard vacuum line. You can splice it with small sections of rubber vacuum line...
    • 75gmck25
      75gmck25 replied to the thread dash pad.
      Sounds like Chevy used the same color scheme as my ‘75 GMC. Interior color is mostly saddle (tan), but the dash pad is dark brown.
    • 75gmck25
      Also make sure it’s installed with real Chevy starter bolts. They have a knurled section that helps everything to align properly...
    • 75gmck25
      They sell replacements in a kit to repair a GM ignition rack. Check yours carefully for cracks, and replace it if any part of it seems...
    • 75gmck25
      75gmck25 replied to the thread No Defrost.
      You can use a hand vacuum pump to pull vacuum on the actuator and see if it works. If it still works, then it’s probably the lines to...
    • 75gmck25
      I have used the same 15445 Belt with a 12si on my ‘75 350 for many years. The only time I get a short belt squeal is if the battery is...
    • 75gmck25
      If you have a relatively stock vintage 454, slightly smaller exhaust will not make much difference. Just make sure you get good flowing...
    • 75gmck25
      There are many 2 1/4” kits, so they are reasonably priced and easy to find. There is only one off the shelf 2 1/2” kit for 2WD vehicles...
    • 75gmck25
      75gmck25 replied to the thread Fitech efi on 350 question.
      The FiTech “wet manifold” design is similar to many other aftermarket EFI systems. Individual port injection is better overall, but...
    • 75gmck25
      75gmck25 replied to the thread Taller tires for my 1976 K20.
      Was there ever an OEM “lighter” version of the 8 lug steel wheels? All major manufacturers used the same 8 lug pattern for a while...
    • 75gmck25
      75gmck25 replied to the thread Fusible Link?.
      I used a TS-6 sending unit on my ‘75 and it is a pretty close match to proper temperature reading. The correct ‘75 vintage GM sending...
    • 75gmck25
      When I replaced the turn signal switch on my ‘75 the switch they gave me did not plug into my wiring correctly. The spacing of the flat...
    • 75gmck25
      75gmck25 replied to the thread Fuel Tank Replacement.
      For an ‘86 you probably need a 3 port sending unit (feed from pump, return to pump, and vent). Get the right one now so you can set...
    • 75gmck25
      75gmck25 replied to the thread Another Question!!.
      The easiest choice for a simple install with original brackets is the 94 amp 12si alternator. It bolts on just like the original (which...
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