That's like asking if it's better to get beaten to death with a stick or a piece of chain. Neither option is one I'd choose. The 409 is way too wide, and too heavy, and the multi-carb idea is just silly on a 235.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!