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302 tune up

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Old 05-22-2006, 10:10 PM
mightyfine79 mightyfine79 is offline
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302 tune up

I have a '79 with a 302, and it seems like its lifeless. I was thinking about putting on a Edelbrock intake and a Holley 650 carb, some newer plugs and wires. Now, would these parts make this truck come back to life, or would I just be better off too do a bottom to top rebuild ?
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Old 05-22-2006, 11:07 PM
petes79f150 petes79f150 is offline
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I wouldn't spend any money on parts until you do a compression test. Why throw it at parts that may not do you any good? How many miles and how has it been maintained? Is it in tune(timing,etc.)? Does it burn oil? Really hard to tell if it needs a rebuild until you figure out what comp. test says.
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Old 05-23-2006, 05:45 PM
mightyfine79 mightyfine79 is offline
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It has 74 6XX Kilometers ( not miles :P ) on the odo. It doesn't leak oil, plugs/wires/cap were changed, timing is good, has a bit of hesistance, but thats just from old gas/crappy carb jets.
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Old 05-24-2006, 12:10 PM
Tech-man Tech-man is offline
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Check your timing.......adjust if necessary
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Old 05-24-2006, 06:23 PM
petes79f150 petes79f150 is offline
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Not to mention, a 302 is really not that great an engine for our heavy old trucks. If you WERE considering a rebuild, I'd step up to the 351 for the torque if nothing else. Plus, you can build a really stout 351 for just about the same money as the 302, and you could leave your 302 in there until you're done with your build. That's sort of what I'm doing, but I'm building a 347 stroker out of a 302 that came out of my '70, then I'll do the build on my '79 motor (ditch the smog heads) and stick it in my '70. All it takes is time and money . I'd really like to do a 351 stroker for the '70, but I've just got this thing about 302's .
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Old 05-26-2006, 09:32 PM
mightyfine79 mightyfine79 is offline
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Are we talking about a 351W ? What does one usually spend on a rebuild ? I'd like to put some pistons/rods and a good cam into one.
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Old 05-26-2006, 10:06 PM
fordxxx fordxxx is offline
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He are some things to check on your 302 that might be keeping the power down:

-First off do a compression test. If you have a burnt valve or dead cylinder then all the tuning in the world won't help.
-Check your throttle linkage...make sure that when you have the pedal floored the butterfly in the carb is open all the way.
-Make sure your carb is not running too rich. The plugs should be a very light gray colour not dark brown. More gas does not mean more power.
-Check your ignition timing. Keep advancing the ignition until you get pinging and then back is off just a little. My timing is set at 14║ BTDC and it runs great.

That 302 will give you plenty of power and good gas mileage if tuned right.
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Old 06-14-2006, 09:14 AM
jgc2521 jgc2521 is offline
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whats "good gas mileage?"
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Old 06-14-2006, 10:38 AM
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My 302 is a 1991 with 260,000 on it and I still get 14mpg for mostly city driving. I do however carry a contractors cap and alot of tools too.
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