hey all, i traded my caprice for a k5, ive been wanting a k5 for a very long time now i got one got a few probs though im thinking its timing or the carb.. its starts up and idles fine, sounds like its got plenty of power but when i put it in drive its got no power, hardly got up the over pass and gotta floor it to get up to highway speed, id say it takes about 10 secs or more to get from 15 to 60mph. i got it parked at my in laws house for the time being, any help is appreciated. thanks guys

 

Are the brakes draggin?

 

so many different things it could be, what engine and how many miles, are the catalytic converters clogged? does it have stock gears and 44 inch tires?

 

was it sitting for awhile? Change the gas filter see if it helps any..

 

i need to check the brakes, could be i put it in gear and it doesnt move till i give it some gas. idk how many miles, its a 350 no big tires or anything pretty much all stock.

gonna get a new carb soon should i get a rebuilt qjet or a 500cfm carter, think the carter would get better mpg? im sure the carter is enough for a stock 350. anyone do this and notice any change in mpg?

 

What year? Tune up? Pull the plugs.

 

86 havent checked plugs yet gomna mess with it this eekend. gomna drop a carb in soon should i stick with qjet or drop a carter in there? btw im not as dumb as my clothes look im just too dumb for smart phones eventually

 

The carter will work fine, but actual gas mileage you experience will vary depending on your tune and driving habits.

AS for the problem, as has been said there are a million things that could cause these conditions. First thing I do when I buy a used rig is a basic tune up, obviously. Start easy with engine oil, gear oil, coolant, tranny oil, spark plugs and wires, fuel filter, air filter. etc. After that go to the slightly more involved stuff with the carb and timing. Obviously this is engine stuff/drivetrain stuff, but chassis and brakes obviously deserve a going over as well. I doubt body mounts, ball joints, shocks, etc would have anything to do with your issue, but do you really know what kind of shape this is all in?

I'm sure some of this stuff you looked over before buying the thing, and not everything needs to be replaced as long as it is servicable. If nothing else going over this basic stuff will ensure help narrow down any problems you might be having.

One last word of caution, be careful saying this is your last k5. If I had a quarter for every time I swore off chevy trucks while working on one I'd have enough to buy another couple of k5s for parts.

 

no i mean my last car im gonna own, ive wanted a k5 forever and i got big plans for it, planning on dropping a tbi 350 out of an old cop car. but thats gonna take awhile.

whats the spark gap suppose to be? gonna put a fuel filter on adjust the timing an carb. i noticed the secondaries didnt open wot while engine was off do they open by vacuum or the cable? thanks for the help guys

 

Look at the emissions sticker under the hood.