[naphtali5725]

Thank you for reading through my build!
I went with Hedman long tubes for the big block 455
They make ones for your small block 350.

Some of The Pontiac trans am’s came with Olds small block 403’s. Those are the block and frame mounts to use to bolt in Oldsmobile engines
The headers for those cars will fit. Hooker also makes them for the early cutlass’s

Plenty of room in the c10’s for long tubes. I went with Hedman for the price
Don’t use big block headers on a small block, they’ll hang down further under the truck due to the difference in engine deck height dimensions

If you have any questions feel free to ask