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- - main jet size for 250I6 3 speed 1967 (https://67-72chevytrucks.com/vboard/showthread.php?t=117068)

Johnny Outdoors

08-25-2004 12:13 AM

main jet size for 250I6 3 speed 1967

i have 3 carbs
all off 250s I6
one has main jet marked 57 one has 58 and one has59
can anyone tell me which one i need
my milage is about 10mpg so i switched to the 57
to try to better my mpg's
its for my 67 lwb 250 3 on tree
thanks
it was running way to rich with the 59 in it before

Johnny Outdoors

09-16-2004 12:19 AM

Anyone?
Ttt

Johnny Outdoors

09-16-2004 12:20 AM

Oh
By The Way They Are All One Barrel Carbs
Thanks

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