340 dyno chart thoughts
Come on guys ! What i see is a small torque dip (could be from headers)but torque peak is still around 46-4800. There is no way a 106 or 108 would make more vacuum,especially with more duration.The way vacuum was explained looks like he took it off ported not manifold.Yes it could have made more but at what price? If the op wanted to pay more for heads,manifold ,carb he would have done so and made more hp.Also dyno headers to car headers or any header short of big $$$ ones .5 in the quarter you must be smoking crack! I see a pretty nice street combo no regrets with a fairly flat torque curve.