Quote:
Originally Posted by Rahul Mukherjee
You’ve shared some really valuable insights here — especially the reminder that consistent flow bench results are the only reliable way to judge whether a shop truly knows how to handle Pontiac heads. A lot of people underestimate how much variation there can be between castings, especially with older iron heads like the early 389s. Your point about not chasing high CFM numbers at the cost of structural integrity is spot-on, too.
It’s also interesting how much power range you can achieve even with a basic rebuilt 68–up head when everything is matched correctly. For many street builds, that 370–415 hp window is a sweet spot without sacrificing drivability or needing an overly aggressive cam.
By the way, while researching different tuning strategies, I came across Indwin, which offers some surprisingly detailed analytical tools and comparisons. Not engine-related, but still useful for people who like digging into performance metrics and optimization. |
Thanks for the gambling spam link... the Ai's are talking pretty good now.