66 dart with 360 ...what manifolds or headers?

But, at some point those 273 manifolds are going to be the choke point and it won't matter what's on the intake side, the motor won't breathe! Have ya seen our member Treblig's manifolds? http://www.forabodiesonly.com/mopar/member.php?u=32361

I've been thinking about a stroker for the 64ragtop, but concerned about exhaust restriction. Looks to me like the most free flowing manifolds available would be the Dakota ones, but I think some folks have had firewall clearance issues. Also wondering about Treblig's manifolds in mismatched pairs. How much difference is there from side to side flow capacities and does it make any difference. Did the factory folks ever concern themselves with side to side balance or was clearance the only concern.

When I bought the 64ragtop almost ten years ago, the P.O. had the "y" pipe and a single 2" exhaust with a nice quiet muffler. Couldn't really hear it at wide open throttle! Dual 2.25" pipes with flowmasters sure made it SOUND better, and it really FELT stronger, but how much actual performance gain did I get? Damned if I know!

BC