Headers vs 340 manifolds

1980 older guy 50 yrs old me 18
he bought a brand new 1969 cuda notch 340 auto
bracket raced many yrs new england dragway many trophys
tried every combo headers cams gear ratios said at the time 4.30s the best
his final combo
340 manifolds
tm5 intake
700 dp
3.55sg
spring clamps
50s street tires out back
stock cam
stock mufflers
13.1@ 103 like clock work
simple is as simple does
many wins
Yeah. I get it. Still combo specific. Headers vs manifolds with no other variables, headers win every single time. I'm not arguing the point. It's a fact.