Cylinder Head Porting and Power Production

You are not wrong and your ability to read between the lines is impressive. I do have the TF's in mind because I have never worked with them and I have never worked with W5's either--only pressure tested one once. Like I said the jury is out on the TF's for me as I have only seen one build that I feel did those heads justice and it was built by a pro (Mike @B3RE ). Anything else I have seen online kinda leaves me wanting for more. As soon as they are back in stock @ Motorstate I plan to order some to experiment with. Best looking SBM chamber I have seen yet. J.Rob


I’ve had my hands on a pair and they are very, very nice. I also like the smaller exhaust valve. While .020 smaller doesn’t sound like a lot, it’s a big deal on that size valve. The exhaust port addresses some of the exhaust issues the SBM has.