I have a 396 BB with less than 150 miles, runs great until the water temp hits 195. Then she runs rough and will stall at traffic lights. I have a speed demon 650 carb, holley 12-454-11 fuel pump, could this be the timeing or carb settings? I will be glad to add more information if I can answer tem. thanks for your help.
lots of questions, does it restart ok? if it hard restart then have someone help you check for spark/fuel....have you done compression test to see if there is water getting into cylinders? Have you checked fuel lines might be to close to exhaust causing vaper lock? Here in arizona we are sometimes challenged with heat and poor running engines when its 107 outside those poor cars have hard times jay
Is the coil getting hot and cutting out, float levels too low or sticking needles in carb, or floats too high and flooding, drawing fuel thru the boosters at idle, metering blocks dirty in carb, is the gas cap vented? Just a few quick ideas.
Most engines require a "vented" gas cap, that allows air into the gas tank. If it is not vented a vacuum is created and fuel will not flow. It is kind of like a beer can... if you punch a hole in the bottom of it, you can drink it a lot faster!
69 Camaro -originally a LM1 car. 327, Edelbrock E-streets, hooker, DUI performance distributors, ultradyne cam, stewart, TRW etc. Vintage Air, AGR steering, Corbeau GTSII seats, 700R4 transmission, 12-bolt w/Eaton 4.11:1
Another Consideration - It takes a BBC 20 minutes before reaching operating TEMP and the reason why I start moving and hope it warms up enough to trip the thermostat before I get to where I'm going; other words, you will spend more fuel then it takes to get there just waiting for the "BEAST" to wake up.
Z15CAM - There was a Viper in my Rear View To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
This was my 70 1/2 Z28
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