Speedmaster Small block porting tips and results Part 1

abdywgn said
would the design of intake(SP,DP or TR)change the flow in different locations?

Yes, as said before, but why. In PBR’s post below, he gives examples of a few intakes. Take some time out to look at these intakes and notice the runners.

pittsburghracer said
Yes. Intakes like a LD340 will knock a heads flowing over 300 to under 260 real quick. But it will come around some with a gasket match and plenum blend. A Victor340 ported will only drop 8-10 max if done right. An Indy intake I redrilled and ported actually took one of my highly modified Edelbrock heads from 315 to a very smooth 318-320. I haven’t tried this intake on an engine yet.

That Indy is a heck of an intake huh?!

yellow rose said
I think you are asking the correct question. The answer is yes. That's why I never get too excited about certain things on a flow bench.

Adding an intake (the better the intake, the better the results) changes most everything.

Amen. It’s nice to see good head flow, but what is connected to it can really hurt it.

@abdywgn, Most here not racing will use a RPM intake and that’s fine for the street since your really trying to focus in on torque for the street. But to use all of what could be available from the head, an intake going through your hood is basically a guarantee!

In racing, the straighter the air/fuel mixture path is to the heads port, the better off you will be. This will also aid the head in actually flowing more than it did on the bench. At this moment, the Indy single plane 4bbl., the MP W7/8/9 single 4bbl. and a tunnel ram are the best power makers.