A set of small tube headers would be a bonus and cheap since your are talking sbc.
I would not waste time/money on true dauls,you don't need them.Plus then you need a different crossmember,etc.
I have a 83 wagon,warmed over 350, with Edelbrock headers that still use a air pump,3" single pipe with Monte SS "high flow" cat,the back half is a Grand National style that splits after the cat to dual mufflers and pipes.Sound good and runs great.I think it would be overkill for you.
My old 79 Grand Prix,stock 301,was upgraded with just a bigger single.I went to a muffler shop,had the them run a singe 2 1/5 pipe from the y after the manifold back,no cat and a big Dynomax muffler.He used the "right side" of a Monte SS exhaust as a guide. The car also sounded and ran better for cheap.
It's only a 305 ,don't get carried away.
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"resurfacing Pa highways 2 long black strips at a time"
78 Olds Cutlass Drag car PONTIAC powered with 440 (destroked 455), th400, 12bolt with spool 4.10z
Best to date [email protected] mph at 3250#
79 Grand Prix, will be new home for the 440
Goal 9.75z@135mph at 2900#
83 Malibu Wagon UUV Crate 350, Custom T5, 8.5 with Auburn posi 3.73z
Making it the Ultimate Utility Vehicle
Go, tow and show (not so much show, yet)
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