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Discussion Starter · #1 ·
i have a 93 chevy 1500 5.7l 350 (lo5 engine 210hp stock) was tbi injected now carbed

its in a 57 chevy truck

im gonna purchase some block hugger headers and the hooker brand look really nice

im unsure of primary choice size 1 1/2 or 1 5/8

im thinkin 2.5in on collectors

it has a edelbrock 600 cfm carb
k&n air cleaner
holley dominator intake
msd dist, msd 6a, msd wires
2.5in exhaust with x-pipe and 1 chamber flows
built th350 trans
3200lb truck
3.73 gear

truck is street/strip so id like good power for both areas

any and all advise is apreciated thanks

13,519 Posts
I'd go with the 1.5" primaries. I'm using 1.5" on my 327 in the Austin gasser, and it runs great with them. Probably a slight gain in bottom end response with the smaller primaries, and not much loss on top end power.
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