727 or 904?

I try to do a project on my car every winter and looking at my options a 904 swap is the best bang for the buck. A tubular front end would be nice but it's a lot of $$ and I'm not going to hack my headers to make the rack work. My car is a street/strip deal, if it were a pure drag car I'd pull all the vents, heater and wipers out and lose some weight, but it's not, so it all stays.
I'm a hot rodder and want to make my car faster, nothing wrong with that.

BTW, good 727's aren't cheap to build either. If you value unhurt feet and legs you'll spend $700 up front for a steel or aluminum drum, I did.