I'd love to see that combo on a different dyno, that is reading really high. Mustang dyno or what? Scan and post your dyno sheet man. I mean more power to you I'm sure it runs strong as hell and there was some bad info in this thread such as saying Cobras made 210-220 at most. They usually dynoed 240 at the WHEELS in stock form. Ford underrated them they were more like 260-275 at the flywheel from the factory. I would have guessed 275ish at the wheels for your combo. I do agree that porting the Cobra upper is useless though, the lower taken out all the way flows 240-250 cfm and the upper flows 250cfm stock. I made 301/325 with more compression, a better cam, Edel RPMs, ported Cobra, longtubes etc... Not all dynos are created equal though lol. Horsepower is just a number anyway, take that thing to the track and see what she does.
