That's a very good dyno figure for the GT40 lower intake and the KB 2200 setup. I forgot you said it had Performer RPM heads, and ported, that should be plenty of head.So let me clarify. These heads described are "Hogged" out literally. No flow benching done just plain hogged out absolutely no science applied. Probably has plenty of volume to use though, lol. Then putting a unported GT40 lower mated to it along with shorty headers that are way undersized compared to the exhaust port topped with an X303 cam which is not really the best cam to use with a KB. Good combo? No I don't think so. But it did make 450hp to the wheels.
We had a customer make 530whp/610wtrq with our stage 2 ported Explorer gt40 manifold, our stage 2 ported gt40 heads and stock cam at 9lbs of boost. Power peaked at 5100rpm and held it till he let up.Just curious, what if the engine was supercharged? Would the ported explorer still be a restriction at say 350-400rwph? Would there be a noticeable gain from an aftermarket intake?
These are the early Edelbrocks from the 90s when they first came out. So my bad just Performers 6037 with 2.02 installed afterwards.That's a very good dyno figure for the GT40 lower intake and the KB 2200 setup. I forgot you said it had Performer RPM heads, and ported, that should be plenty of head.
As the other here mentioned the lower GT40 intake being small, and the debate of porting etc, I'd want a better intake if there was a choice.
That's not the correct way of doing it. It might work for a short time but eventually it will fail. Any good porter should also know how to tig weld. We weld areas where we bust through that way the part lasts. I would be very weary about a porter that uses epoxy to fill in port holes on his customers parts. What else is he skimping on.Intakes and heads have used epoxy for years. If done properly, there are no issues.