Search results

  1. E

    Hard starting

    As some of you may know I’ve been trying to track down my hard starting issue I’m having with my 1990 sea ray with the 7.4 big block. I recently installed a new Holley 4150, 750 double pumper carburetor on it and in order to get it to start I have to keep turning the key on and on and on… I’m...
  2. E

    Plugs fouling

    Am I correct to assume that the primaries are for the idle and secondaries are for throttle?
  3. E

    Plugs fouling

    Okay quick question, I just got done pulling the bowls off of the carb and I noticed that on the front bowl they had jets 65 stamped on them and on the rear bowl them two jets had 71 stamped on them. Is it uncommon to have two different size jets in a carburetor?
  4. E

    Plugs fouling

    I neglected to add that I did not buy this carburetor brand-new, I bought it off of a guy that put approximately 10 hours of run time on it which he had it on a 454 also
  5. E

    Plugs fouling

    I’ve neglected to add that the guy that I bought this carburetor off of had it on his boat for 10 hours which was a 454 also, Not sure if that matters or not
  6. E

    Plugs fouling

    Ok so I guess I should pull the jets, where exactly are they located at in holleys?
  7. E

    Plugs fouling

    The motor is pretty hard to start and just today when I had it running it stalled out a couple times. I didn’t notice any blue smoke but I think it was a tad bit black..
  8. E

    Plugs fouling

    Well…I did notice in the driveway after running the motor for a bit that there was black film on the driveway….it didn’t smell like oil but it did just smell like exhaust gasses.
  9. E

    Plugs fouling

    Okay as some of you may know I just got done putting a new carburetor on my 1990 7.4 454 motor. I know most of you are going to give me flack for not having a marine carburetor on here but I couldn’t pass a good deal down so I picked this one up to throw on here and see what it would do. Why...
  10. E

    Fuel pump/carburetor

    Where would that connection be at on the carb
  11. E

    Fuel pump/carburetor

    Nope….
  12. E

    Fuel pump/carburetor

    Will one of these work?
  13. E

    Fuel pump/carburetor

    Also where can I get a Holley throttle bracket to use?
  14. E

    Fuel pump/carburetor

    OK bear with me here guys, I just got done doing a swap on my 1990 sea Ray Sundancer with the 7.4 454 big block motor. I also attempted to rebuild my Quadra jet carburetor and I must’ve messed something up so I went ahead and purchased a new Holley750 double pumper carburetor for it and I guess...
  15. E

    Carb question

    Anybody have any tips on getting these pesky J tubes taken out of these holly carburetors so I can install new ones? The ones that I have are broken off
  16. E

    Starting problems.

    Couldn’t I run a 4160 street carb instead of a 4160 marine carb?
  17. E

    Starting problems.

    How does it run though, any issues?
  18. E

    Starting problems.

    But you’re sure these 7.4 stock motors use a 750 cfm carb though right?
  19. E

    Starting problems.

    OK, if the secondaries Are mechanical, How difficult of a job would it be to switch to a vacuum secondary carburetor?
  20. E

    Starting problems.

    are these quadrajet carburetors vacuum or mechanical secondaries?
Top