We ran both the Super Victor and the Mopar 337 intake. Also ran 1.70 and 1.85 ratio rocker arms on the intakes. Best power was 1.85 intakes with the 337 intake.

I assumed the 337 intake would be down 15 or 20 hp from the Super Victor but actually the 337 intake made the most power. Not sure why that is the case but it did.

Peak power with the 337 intake was 797 hp. The best pull with the Super Victor was 791 hp. Both of those numbers were with the 1.850 rocker arms. Best pull with the 1.70 intake rocker arms was 780 hp so the bigger ratio was worth about 10 hp.

Carb was rich with the 337 intake so there is probably another 10 hp to be found. We had the carb dialed in with the Super Victor but the 337 intake must be working better since it makes more power with less jet. I'm still having a tough time believing the 337 intake works better than the Super Victor but if you can't trust back to back dyno pulls then what are you going to trust?

4860223-337.jpg (414 downloads)
Last edited by AndyF; 12/05/08 10:21 PM.