cast iron bowtie

[SSDiv6]

Originally Posted by firebird

I'm still banging away at the ss/cs with a 350 chevy

You should contact Randy or Michael Mans.
They held the record many times in the class with the Bowtie Vortec heads.
They also flogged and tested every cylinder head in the market and stayed with the Bowtie Vortec.

Do a search were Michael speaks about his experiences with the different heads for SS/CS.