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  1. MOPAROFFICIAL

    How Do I Adjust A Subwoofer For Best Sound?

    I'll switch the amp to sub on the cross over and or set them anywhere around 50-80 khz. Depends on the mids used and size
  2. MOPAROFFICIAL

    Is 20W-50 too heavy for my 340?

    It's fine. Nothing wrong with a little extra viscosity.
  3. MOPAROFFICIAL

    318 with a new 4” crankshaft.

    Buy your crankshaft from Ohio crankshafts. The eagle crank is a piece of ****. Run more camshaft, like .575 lift, 290 duration 108 lsa. Have a valve job done on the seed blaster heads too. Stock rockers are a bad idea unless you mean mechanical style.
  4. MOPAROFFICIAL

    Random pictures thread

    My hiking friend
  5. MOPAROFFICIAL

    My 340 getting 6 mpg

    750 dbl or vac should get the same if only driven in the primaries. Mine got 15 mpg.
  6. MOPAROFFICIAL

    My 340 getting 6 mpg

    This is just a consideration, Stop n go so. Cal traffic is a terrible way to average hwy mileage. On average it takes 1.5 hrs to drive 68 miles at off n on 80mph in stop n go traffic. My impreza 4 banger shows 6.5 -9 mpg when accelerating to speed. ..then it's 29-37 mpg at cruise. Dbl pump 340...
  7. MOPAROFFICIAL

    My 340 getting 6 mpg

    Speedo no worky. I think he's using the navigation mileage and fills the tank deduced by how much he can put in the tank bringing it to full again.
  8. MOPAROFFICIAL

    My 340 getting 6 mpg

    I think the carburetor is to be replaced with a brawler or std holley 3310. Someone's been into it. Ootb it's supposed to be 71/82. Bleeds have been fiddled and the jets were 65/75, could correct it.. but the plate is **** and it's not a good look so far.
  9. MOPAROFFICIAL

    My 340 getting 6 mpg

    The plug after the timing was corrected, pre carb tune.
  10. MOPAROFFICIAL

    My 340 getting 6 mpg

    The carb is decent, except for the throttle plate... its cheese. The accelerator pump arm screws wobbly pos's and you watch the throttle raise then dip while turning the speed screw in. Trash. The idle changes speed after driving it, raises.. lowers. When yoy come back from a test drive it's...
  11. MOPAROFFICIAL

    My 340 getting 6 mpg

    Dude , are you ok?
  12. MOPAROFFICIAL

    My 340 getting 6 mpg

    Timing is 24/34 Plugs all cleaned up, jets were 65/75 One pv 6.5, vac at idle 10.5-11, good enough. Jets are Now 68/78, for now.
  13. MOPAROFFICIAL

    273 commando Build

    920 are around 67 cc, maybe a smidge less. 315,920... same closed chamber. The pistons were designed to work with them. Use a performer intake if you can't find a ld4b
  14. MOPAROFFICIAL

    My 340 getting 6 mpg

    I have a vac advance distributor I'll bring for fun, I'll have to shorten the slots 1st. I'll be check plugs for spark lines placement just at the bend on both ends. The carb is my main concern. The plugs were black when it had 65's in it to begin with... so I'll be into that pos top of the list.
  15. MOPAROFFICIAL

    3" Dynomax Ultraflow Carnage

    Mine are fine. Same 3" ultraflos Strange to see that.
  16. MOPAROFFICIAL

    My 340 getting 6 mpg

    I'm heading to his place to tune the carb sat or sunday... and will change the adv bushing ,increase the initial timing by 10 degrees and then see what it gets. If anyone in the area wants to come with and see what I'm doing, message me.
  17. MOPAROFFICIAL

    My 340 getting 6 mpg

    Please stfu
  18. MOPAROFFICIAL

    rocker shafts installed backwards... long read. but pics!

    You want the oiling holes facing down towards the springs. Notch or no notch. Not having them the right way will wear the rocker,shafts, stems more than necessary. Remember... of they were to point straight down.. yoy could put them on anyway ya wanted. They point down towards the springs.
  19. MOPAROFFICIAL

    My 340 getting 6 mpg

    Not the smiling version either. Haha
  20. MOPAROFFICIAL

    My 340 getting 6 mpg

    I'm pretty sure that when I was there working on the car I dropped the butterflies and only raise them a little each one so that they're probably in the idle circuit just fine. The car was a mystery carb used he bought it already had like 65 in the primaries we didn't even get into the...
  21. MOPAROFFICIAL

    My 340 getting 6 mpg

    I thought it was 12 and 34. The carb isn't right yet, may be the wrong carb 'not size' for the aspirations of decent mpg, but it still needs to be jetted down and driven hwy speeds..reducing the primary jet size until it surges, then go back up 2 jet sizes. Next dial in the secondary jets within...
  22. MOPAROFFICIAL

    Clear float bowl plugs

    If you leave them in... they get soft. I did that once, figured it out and put the brass plugs back in.
  23. MOPAROFFICIAL

    CNC Ported Heads for 318 Poly?

    If he is a left winger fk hed, then no one should give him a penny. Send him spam and burning bags of dog ****!
  24. MOPAROFFICIAL

    Cylinder wall weld??

    Machine plugs wpuld have been better, but I don't know the situation . Either have it fixed, run it... or have it milled to flat and gamble
  25. MOPAROFFICIAL

    I hate BMW’s

    Those bmw 3 and 5 series radiators work great in a bodys.
  26. MOPAROFFICIAL

    Carb recommendations for my 340

    As others said, 750 cfm. Brand ? I like holley and quickfuel I don't like the avengers because they are calibrated lean. The 670 for instance, a 650 classic dp would be better... You need the 770 to compensate for lack of a 700 or 750 dp..and even then..
  27. MOPAROFFICIAL

    Spark plug readers

    That's an indicator of proper heat range people. Selective agrees and likes, fan clubs confusing people, great...
  28. MOPAROFFICIAL

    Spark plug readers

    Pics aren't great, zoom in with clarity looks close like others said.. but it's a hotter plug you need not a colder one if you need one at all
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