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Originally Posted by John Langer
I have alot of experience but my data is useless to others. My data is with my combo, cam, cid, head cc's, intake runner length, carb size, rpm range, plenum size, runner csa, etc. You can add a spacer on the dyno and pick up hp but loose a ton when it is in the car if you dont have enough carb to hood clearance.
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Ditto, what he said.
I've had two similar engines on the dyno just hours apart and what worked on one didn't do anything for the other. As you know subtile differences can be important. As PP mentioned in post #2, a four holer going into an open usually works for me.
Sometimes you find power on the pump and in the car it's not faster. My opinon, the best results for intake tuning is done at the track.
Sorry for no data but I'm not sure that it would necessarily mean anything.