Ask them. You’ll get two different answers. Then go use them both and see who is full of ****.
Remember all the **** I got right here in this forum for telling people to stop using half intake idle vacuum to set power valve opening. A regular crap factory.
A couple of guys went out and tested it and found out that for decades Holley and their mouth pieces have been giving wrong tech. And they still do it.
Ask away. Then go test and post your results. That would settle it. Well it won’t because some will never learn. But YOU will know.
