Intake choice.

I recently read an article where Dave Hughes tested a bunch of SBM intakes. Some of the group of intakes had as much as 43.6 cfm spread between runners.

The Performer RPM only had 16.3 cfm difference and the Weiand had 31.4 cfm difference.

Edelbrock did a fabulous job with Performer RPM intakes for SBM & BBM engines. However they were computer designed and that allowed for much better product.

In Hughes testing there were intakes that showed more cfm port flow than the RPM, but on the actual engine dyno the RPM intake made more HP and produced

more TQ than ones that had more volume. Mopar Small-Block Intake Manifold Flow Test






Tom