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Message: [QUOTE="lincolnlocker, post: 1471242, member: 944"] i didnt even think of all of that!! i remember now that my old 400 wouldnt run worth a crap with the holey 600 i had on it. took it to my neighbor and he was a drag racer and he jetted it down a lot. dont remember exactly what it was but it was running way to fat. he pulled plugs and inspected them with his lil magnifying scope thingy and kept jetting it down till the burn mark was perfect. then had to do it all over when i had it rebuilt with head work and a 60 over bore.. ran like a banshee after it was rebuilt and the carb was readjusted.. never ever needed a choke. not even in the dead of winter.. pump it twice and started it up with a flick of the key.. i remember calling jegs and inquiring about msd ignitions and telling them what i had and they said i had way to much carb for a 400m.. said exactly what was said above with a 450-500ish size carb.. i have seen guys run big single barrel carbs on 305/350 gm motors and run like a bat outta hell.. so that proves it too.. Sent from my SCH-I545 using Tapatalk [/QUOTE]

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