M1, Victor340, and RPM Air Gap flow testing

pittsburghracer said
Now let’s add the RPM Air Gap to this and this because again I’ve never used this intake I’m taking it is different than the RPM Performer?

-Head—M1 intake—-Vic340–RPM
.100—64——————62—68–66
.200—125—————125–131–131
.300—187—————183–192–188
.350—214—————213–218–211
.400—238—————236–237–227
.450—257—————246–251–241
.500—284—————255–259–250
.550—294—————256–260–254
.600—296—————258–262–251
.650—302—————271–272–254
.700—308—————279–280–250

As you can see the RPM Air Gap totally trashed a good flowing head causing it to get noisy, turbulent, then backing up. A dual plane was never made to work on a head flowing 308 but it shows you the importance of not just grabbing an intake off a flea market table and throwing it on your engine combo. Both of these heads the Victor340 will be tested again after some porting but will be tested hopefully on a different head. Hopefully have this pair of heads finished this week and gone.

What’s nice about having this information is it not only helps fellas out but it also backs up a lot of what you people doing. The RPM plateaued at .550 and lost a tiny bit @ .600.

While you don’t need a giant lift cam to get the car running quick, it certainly helps on the big end for HP. Most cams that lift this high with the 1.5 rocker and pretty much in the race territory, though some are not, but there close.

Still, as seen before, a nice cam and a rpm set up right with the complementary Parts, can indeed get your car into the 11’s.
I don’t care what any body says, that’s a hot street car.

And now you don’t have to over pay and over build.