Re: 331 Chassis dyno results
you should definately port the intake. afr 205 heads flow well over 300cfm intake, where as a victor jr's runners flow around 260cfm stock. So, if you can only get 260cfm of air through the intake you are in turn choking off the heads and not utilizing all of the flow potential there.
your setup apears to work well, however i feel that there is a lot more left given those heads and cam.
the 1 5/8 headers and the 2.5 inch exhaust may be restricting you slightly as well, but i do fell that they are mostly responsible for the impressive torque curve. to me, a cam that big and heads that big with around 11:1 compression and 331 cu in shouldn't have any problems making power well past 7000rpm.
we just finished an engine for my friends fox body, it is a 347 10:1 with ported patriot heads that flowed 278 intake 190 exhaust (junk heads i know) the cam is a comp .614/.621 248/254 street roller, gold race rockers, 1 3/4 headers, 3 in exhaust, ported parker funnelweb intake with 850 holley and it made 422 at the wheels through a toploader, 435 open headers at 7000. torque was 373 muffled, 379 open tube. 35 deg total. I dont have a dyno sheet though.
again, im not saying theres anything wrong with your setup, but i do feel that there is some serious horsepower and some rpm to be had with a ported intake.
best of luck at the track!