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Jake1982 Jul 27th, 08, 5:34 PM I have a 5/16 line originally from my old inline 6. Well my 350 idles and reves great under no load but onces in gear seems to bog down and not have much throttle response and slow to get going. Checking some threads a lot of you guys have the 3/8 line. Should a 3/8 line over a 5/16 make that much of a difference? Mike Jul 27th, 08, 5:54 PM Put a fuel pressure guage and the guessing's over. aukai Jul 27th, 08, 5:55 PM No check, timing, blocked filters, carb problems etc. something else is wrong until you get up to higher rpm and more mph then 5/16 will slow you down Jake1982 Jul 27th, 08, 6:16 PM fuel pressure is fine new mechanical pump installed superstocker72 Jul 27th, 08, 7:46 PM sounds like a carburator problem... Mike Jul 27th, 08, 7:59 PM If the fuel pressure's constant at the carb ,it's not the line that's holding you back. DOUG G Jul 28th, 08, 4:34 PM 5/16's line was good with stock pump to mid/low 12 in my car. animal69 Jul 28th, 08, 9:03 PM fuel pressure is fine new mechanical pump installed But did you check the pressure? You have to eliminate the variables. Just because you put a new pump on it doesn't mean it's not the problem. | ||