Recent content by ThatPolarBear11

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    74 Valiant 318 Backfire when hot

    Yeah I'm kinda leaning towards flattened lobe, kicked rocker, or bent pushrod to be be honest
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    74 Valiant 318 Backfire when hot

    Ahhh I see, but yeah I had to hold the choke open to get it to rev better. That and the new cometic gasket on there helped, I'll pull the valve covers Thursday now that I've eliminated the easy stuff
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    74 Valiant 318 Backfire when hot

    So to elaborate the electronic choke actuator does not work at all
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    74 Valiant 318 Backfire when hot

    It helped but it still does it at high throttle
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    74 Valiant 318 Backfire when hot

    Also no gasket between spacer and carb was causing a leak
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    74 Valiant 318 Backfire when hot

    Idk if the secondaries are supposed to be open all the way but they're staying shut basically
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    74 Valiant 318 Backfire when hot

    It's timed at 12* btdc now, pulled the carb due to a vaccum leak and found this as well
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    74 Valiant 318 Backfire when hot

    That's a great idea, I'll give that a try tonight then, saves me money on a temp gun
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    74 Valiant 318 Backfire when hot

    It's ran like this since we got it, it came with that manifold and carb, and like I said it only backfires when warmed up
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    74 Valiant 318 Backfire when hot

    Well crap, really strong start thankfully it's a bit easier than the euro stuff I'm used too which is nice. If it is a cam what cam and timing kit would yall reccomend?
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    74 Valiant 318 Backfire when hot

    Yeah I can get a video tonight for you. That will probably make this easier
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    74 Valiant 318 Backfire when hot

    Through the carb 100%
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    74 Valiant 318 Backfire when hot

    It would backfire when you give it any sort of aggressive throttle when in neutral or when load is put onto it i.e. going up a hill in 2nd. Appreciate the warm welcome!!
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    74 Valiant 318 Backfire when hot

    Just picked up a 74 Valiant w/ the 318 and a 3 speed. Someone swapped an edelbrock carb and a Weiand super street manifold onto it. Runs good when cold but backfires when hot. Haven't shot base timing yet (adjusted it by ear) but wanted to get opinions.
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