LA 340 Intake Manifold
340 in a B Body? i almost did that once I had a 69 Coronet 500 with a 318 got to readin up on 340s then I found a 70 Swinger 340 for sale. I asked about "just the engine...?" guy siad "No I want to sell the whole car..." I was like "ok" .
$1000 dollars later I was towing home an H code swinger and parts. I eventually got rid of the B body it had too much rust for my skills at the time but today I wish id kept it. anyway Id run a dual plane on the street i know its a generic answer but I hear many say single planes are terrible on the street and it makes sense they are designed basically for best performance in the upper RPM range