70 Nova Big Block Question

[kwhizz]

I bought an original 70 Nova Big Block L34 car....Turbo 400.....column shift....bench seat.....12 bolt 3:55 Posi.....Power Steering......Power Disc Brakes .....black walls......steel rims.....small caps......the car came out of the L.A. area and is as perfect as they get
The car has a CE Engine in it.....TCS system and evaporative cannister........
My question is.....all the info I've read shows that there should be a 1/4" return fuel line with this engine combo........I have only a single 3/8" line......Could it have been a 375 H.P. car......I know there were more 375HP cars built than the L34 cars.........I have access to a date correct 396-375 engine..........what do you guys think....would it have more value as a L34 or a 375......it doesn't have the correct engine anyway......just want some opinions
Thanks
Ken