Small Block & Big Block Chevy Specific Mouse & Rat Motor Discussion & Conversions

fuel system problems. HELP!!!!!

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Old Aug 5, 2009 | 10:14 PM
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99T/AMAN's Avatar
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Default fuel system problems. HELP!!!!!

Ok so we took the 305 tbi motor out of my buddies 89 camaro and installed a carb 350 motor. Now the car will run fine for awhile then seems to get fuel fouled out and will run like **** till it gets cleared out, it has a fuel pressure regulator and running stock fuel pump in tank. Question is if the fuel pump is just pushing to much pressure for the regulator or what else could be causing the issue??? Ask any questions you can to help me figure this one out. Thanks
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Old Aug 5, 2009 | 10:29 PM
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Think you are stressing the fuel pump, is it a return style regulator?

Last edited by ZONES89RS; Aug 6, 2009 at 09:05 AM.
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Old Aug 6, 2009 | 06:12 AM
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Probably need to put a bypass regulator on it. I don't know how much pressure a stock pump puts out, but most dead head regulators will only handle about 15 psi going into it.
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Old Aug 6, 2009 | 07:19 PM
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so i need to find him a return style regulator, the way it is hooked up now there are 2 lines to the one regulator which one is return but that wont work if the regulator is not a return style is what i am getting from this?!?!?!
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Old Aug 6, 2009 | 07:45 PM
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Yep, needs to be a low pressure return style regulator, the one you have is a two port regulator.
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Old Aug 6, 2009 | 07:58 PM
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just change the cam to one that has fuel pump lobe and put mechanical fuel pump and you will be fine
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