626 manifold quetsion....yet another thread

[repthemazdas]

dude...your asking something that nobody had done. You have the manifold, just do it

fuk it lol ill give it a try.... thanks for the help!

 

[Alejo_NIN]

ok i know this is a old thread but i need to know! im building a fully built 2.0l N/A NO BOOST!!! and i have this same manifold like in the first page and i just need to know if there will be a gain if i port and polish it to match my speedcircuit Ported Head??? any help would be great thanks!!!

i believe it you would.
now, how much? that's hard to say.
every time you do modifications to ease the flow of air it should help at some level.