If you switch to a good intake and 4bbl your butt dyno will for sure feel the improvement. AND it will be WAY more fun to drive. The Aspen was choked with emissions CRAP with the 2 bbl set up and was kind of anemic even with a 4 speed. After the swap it was night & day difference. The 318 was WAY over carb'd with an 850 Thermoquad, but boy did it respond when I was in the higher RPM range and the secondaries kicked in!!