Heat Cross-over

I pulled my RPM intake off, used Edelbrock glue to seal a couple of very thin tin (eavetrough tin) pieces to block the ports off on both sides. Works great as the engine bay is much cooler, no cooked paint on the block or clearcoat on the intake. Can still smoke the tires like there's no tommorow, and with this summers temps in Alberta Canada being a crappy 15-23C (59-73F for you 'mericans) it only takes a couple extra runs around the block to get it up to give er' temp.
Seal em off. You'll be glad you did.