Manifolds ported before sportsman and competition

[19Cutlass94]

I looked but I didnt see this asked.

For the LA1, 3400, Before there was the sportsman or competition and such, I had mine ported from WOT-tech. How would that compare to the ones that are offered now?

[SappySE107]

Sportsman is the "new" option so yours are closer to the competition porting. There are sanded ports, which came before the rough finish that I now use. Slightly better flow from the rough, so I changed.

[3400-95-Modified]

Whats rough to you? 80 grit?

[SappySE107]

ROFL! Double cut carbide cutter meant for iron.

[3400-95-Modified]

LOL, Ok. I assume you use something a bit smoother on the heads.