Just wanted to know what a GOOD size, not too small/big for bore size. I was thinkin about getting the Skunk 2 manifold which i heard was 64mm and then getting my stock TB bored out to 64mm to match that. Would this be good for my 400whp goal? thanks.

 

Thats what i got, it should be fine

 

Thanks. Hopefully ill get the numbers i want.