A 10 second 355 NA Impala???
I want some of what you'r smokin...
Turbo guy, put the turbo on the 400 and you would be even better off.
But you are all wrong, stroke the little 400 to 434, or even 454, put a little cam in it and still walk over everyone.
Heat? no more heat that a smaller engine with the same HP.
My 434 runs just fine crusin the Car Craft show in 95 degree days, and runs 11.90 at the track ( and yes I have timeslips )
Gotta love it