ok guys im still having problems with my 85 when i go up hills

[cootersk5]

ok heres the story i bought an 85 blazer from a guy. dont ask me why but he put a 307 in it. well thatcame out and i bought a 350 from advance auto parts. i went through three engines i finally got one that didnt mess up some how. now heres my problem
when im going up a hill and the tramission needs to downshift to get more power and then kicks back up a gear the truck kicking and bucking and acting like its flooding itsself or something. at first i thought it was my holley carb because the engine had blow back through it so i thought i had blown the power valve or what ever is in those that go all the time. so i put my edlebrock 600 on it and it was fine for about half the day and then started doing it again. so what do u all think. maybe the spark isgetting drowned out or the timing of a little off i dont know please help /forums/images/graemlins/grind.gif

 

[HarryH3]

Make sure that the fuel filter is clean. If the carb doesn't get enough fuel to keep the bowls full then it will start to buck under heavy loads. /forums/images/graemlins/frown.gif

 

[cootersk5]

thanks i didnt even think of that /forums/images/graemlins/grind.gif

 

[Pookster]

Had the same problem once with my 87- Fuel filter was clogged beyond belief. Replaced it and I reached a top speed of 107. /forums/images/graemlins/whistling.gif

 

[79Stomper]

Maybe even it could be the carb. My street carb hates anything off camber and will flood out and strand me and I have to ride the skinny pedal and the brake to make it over an obstacle so I am going to put the Q Jet back on it and be done with it, or atleast until I find a nice TPI set up.

 

[dontoe]

Had the same problem with my Edlebrock carb and installed "spring loaded float needles" and never had another off camber problem. /forums/images/graemlins/waytogo.gif

 

[pauly383]

[ QUOTE ]
at first i thought it was my holley carb because the engine had blow back through it so i thought i had blown the power valve or what ever is in those that go all the time. so i put my edlebrock 600 on it and it was fine for about half the day and then started doing it again.

[/ QUOTE ]

What tranny , if you are running the 4 speed auto , and chances are it came with highway gears , no carb will fix that . Just leave it in 3rd , or manually downshift , and deal with it sucking on hills until you get lower gears in the axles . The tranny is probably downshifting , gaining some speed , and upshifting again , then you lose momentum and it kicks down again .

Just a thought /forums/images/graemlins/k5.gif /forums/images/graemlins/k5.gif

 

[beater_k20]

right on, lower gears are your answer.