Mart i could be wrong here but picture 4 is from a different set of headers, the first 3 show a traditional chevy pattern, the 4th shows a spread port/Stahl pattern
You are correct. Pic 4 are the heads they were mounted on. Those Pontiac heads have a dual bolt pattern. Pic 4 shows the new custom made headers that replaced the zoomies, also with the 2nd bolt pattern being used....
K, didn't want the next buyer to think one way or another...........just went through this hassel for a customer, hard to find tight fitting headers on the spread port pattern
I'll check John. An adapter plate and you're zoomin.... I can get a pic of the headers when they were on the tube chassis car if that'll help out.
what i need to do is retire completely so i can finish all the dam projects before the dirt nap catches up. lol