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BenD=> would my car run if the pump really => was putting out 1 PSI? Yes, up to the point where you are using more fuel than the pump is delivering. Remember that fuel pressure *replaces* fuel in increments as it is used by the carb(s). If you go three blocks, hit a stop and idle, the pump has plenty of time to replace the fuel used while you were accelerating. Next you accelerate smoothly up to cruising speed and cross town. Cruising requires relatively little fuel, so the pump may be able to keep up just fine. But when you hit that big hill, your foot goes down and you start using more fuel. Now the float bowls are draining faster, the needle valves stay open and the pump is moving all the fuel it can, but as you near the top the carbs run out of fuel except for the little bit coming in and suddenly you're sucking air (actually running way lean), the car jolts because the engine is now being driven instead of driving, and you feel like you've spun a rod or something. You take your foot out of it and begin freaking out, and just as you're moving to the breakdown lane, the engine lights up again and you go "What the f**k was THAT?" That was fuel starvation. Steven Ayres, Prescott AZ '66 KG1600 ------------------------------------------------ To unsubscribe, E-mail to: <type3-off@vwtype3.org> For more help, see http://vwtype3.org/list/