Carb cutting out
#1
Carb cutting out
Hey guys! I haven't posted in awhile! To update you on where I am at with my Blazer, this last winter I got rid of my 700r4(I know bad idea!) and swapped in a rebuilt th350 with shift kit! After that project I bought some Vortec heads and threw them on what I thought was a Chevy 350... It turned out to be a 400. That turned out badly! Cracked my block! Rebuilt the original motor with the Vortec heads!
That brings me to my question! Since I put the 400 in a went too carb(against my best judgement!) Well, the carb has done me just fine...until now! With my Vortec heads I had to get a Vortec intake which is for a square bore carb, I have the original Quadrajunk spread bore so I had to get a spacer.
Now every time I just barely press the throttle, say taking off from a stop, it wants to cut out. Now, I've had numerous friends tell me its getting too much fuel, but since it never happened before, I think its getting too much air, especially with the spacer! What do you guys think?! Is there a thinner adapter I can get? Do I need a different carb? Am I getting too much fuel?!
If you mash on the throttle it'll cut out for a second and then take off, takes the fun out of racing! Any help is appreciated! I'll post pics!
Thanks!
That brings me to my question! Since I put the 400 in a went too carb(against my best judgement!) Well, the carb has done me just fine...until now! With my Vortec heads I had to get a Vortec intake which is for a square bore carb, I have the original Quadrajunk spread bore so I had to get a spacer.
Now every time I just barely press the throttle, say taking off from a stop, it wants to cut out. Now, I've had numerous friends tell me its getting too much fuel, but since it never happened before, I think its getting too much air, especially with the spacer! What do you guys think?! Is there a thinner adapter I can get? Do I need a different carb? Am I getting too much fuel?!
If you mash on the throttle it'll cut out for a second and then take off, takes the fun out of racing! Any help is appreciated! I'll post pics!
Thanks!
#2
youre probably going to have to find someone with that exact set up to see what they did. my 400 had the original 2 bbl on it and never ran right. so finally swapped intake to a 4bbl intake, tried a quadrajet, then a edlebrak, then finally bought a new holley. even then i still had to take it to someone to have it tunned right
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justDrivin
2nd Generation S-series (1995-2005) Tech
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04-07-2008 06:13 PM