header advice

[wick]

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

 

[42chevy]

In my opinion the smaller primary is better for low end torque. I also would use the best gaskets and locking fasteners to avoid some of the leak issues.