@ratty dart 340
The internet is a wonderful thing. Go to the manufacturers website and look up the product you have.
[URL]https://www.hedman.com/passeng...487&YearID=1973&MakeID=40&ModelID=300&CID=360[/URL]
Even has a fit button to select POWER STEERING... You have the first set of headers in the link is my guess 78050
For whatever reason I'm going to mention this.
@Dan the man
If the smaller tubes were so much better at scavanging, why is it not uncommon to see larger tube headers create more TQ/HP than a smaller tube down low on a 300hp SB? That header test on a crate motor showed that. Kind of contrary to what you've heard.
Now all this thread needs is for someone to scream about how headers are a waste on a 300hp engine for xx hp gain... Then this shitshow will be complete. :lol:
Pick your parts, pay your money.