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  1. granthendrickson

    Spark plug

    Has anyone seen this on a plug? If so what is causing it? Engine is a 355 with 3,000 miles and is running rich. It makes what I think it’s a knock sound coming through the exhaust. All the plugs on the right side of the engine look like this however the left side plugs look normal.
  2. granthendrickson

    74 k10 going 55 mph is at 3,500 rpm

    I got a 1974 k10 with a 203 transfer case, turbo 350 and a 355 sbc. The rear gear is 3.73 and at around 55 mph cruising the rpm’s are up to 3,500. That seems a bit high to me, does anyone know what I should do to the truck to get lower rpm’s at 55? I’m also getting 8mpg.
  3. granthendrickson

    Carb to mounting plate torque specs

    What is the carb to mounting plate torque specs? I’ve been having a vacuum leak and so I tried to torque the nuts on the studs to 3 ft lbs and the studs stripped out and one broke in the mounting plate. The treads for the plate came out with the studs when I took the non broken ones out. I plan...
  4. granthendrickson

    74 k10 bed not level

    my 74 full time 4x4 k10s bed is unlevel, on the passenger side it is higher than the trim and body lines ect. The left side looks normal, what could be causing this? It’s not the frame I know that much. Here’s some pictures.

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