For what it's worth... I'd suggest headers.
Have had Thorley's on for a long time, and many miles. I did have to replace
them after 10 years, but that was primarily due to having them wrapped (per
some bad advice).
Heinz
'76 Transmode
www.bytedesigns.com/gmc
Have had Thorley's on for a long time, and many miles. I did have to replace
them after 10 years, but that was primarily due to having them wrapped (per
some bad advice).
Heinz
'76 Transmode
www.bytedesigns.com/gmc