Whatt to do?

I just picked up a numbers matching numbers 1969 Dart GTS with a 340/4sp. The car has 55K originals miles and is a true survivor. F7 with black vinyl roof and interior with the black bumble bee stripe. It looks beautiful. But I have a 950hp 571ci BBC just sitting in my garage I want to swap out because the 340 is so wimpy. Do you guys/gals think that is a good idea?
Horrible Idea. putting a chevy engine into any mopar is just bad voodoo. Especially a numbers matching 69 DART GTS with a 340 AND a 4 speed. that car is among the most desirable A BODIES. you'd be better suited selling it and buying something else to put that chevy in.

Normally I'm all for custom builds, but this is one time where I highly reccomend leaving the original drive train in. If it was a slant 6/auto car, that'd be different.