Chevy 350 runs but has no power. Cylinder head upgrades can increase airflow, while a new camshaft and valves can improve power and torque. May 31, 2023 · If your chevy 350 is lacking power, there are several modifications you can make for improved performance. Secondly, find the initial timing that works best for you. Sep 12, 2012 · If you say you have a hard pedel your spring might be too stiff, but you just have to push on the gas a little harder from the cockpit. Nov 3, 2018 · Fuel pressure at idle is fine at 10 PSI (if I recall correctly for the TBI 10 works, but I do remember my old TBI running closer to 12 or 13), but if the pressure drops drastically during acceleration it could cause the problems you're having. Apr 9, 2024 · I have a 87 Chevy 350 that was running good but latley it has been stumbling and backfiring when you step on the throttle heavy. Feb 9, 2011 · Hey guys, I finally got my 350 up and running, she purrs like a kitten and is stronger than EVER! I have 70 to 75 pounds oil pressure cold and 40 - 45 warm and 70 pounds when i get on the pedal! Jun 20, 2010 · Many older, higher mileage smallblock Chevys develop flattened cam lobes over time, resulting in lack of power and, sometimes, backfiring and the like. Jan 18, 2012 · my 350 chevy motor for some reason won't rev past 3500 rpm while on park, throttle response is not at its best. Does anyone know what could be the problem with it. Lack of power is the most common symptom of flattened cam lobes. It revs up fine in park and. A vacuum test will reveal whether this is the problem or not. yxsjwr jotw izrsm wqwal mrgxlw qnevqlp yqa zui fud tmxl