360 roller block and fuel system theory

[Inman789]

So my project (74 Cuda, auto, 360) was a stalled restomod without a drive train. Since it is a 360 car, I was able to source a couple 360 blocks. One is a 85 vintage with 1.88 valves, flat tappet, and fuel pump. The other is '96 roller, looks like 2.02 valves but no fuel pump boss.

I like the idea of the larger valves and roller so I have been thinking about the fuel delivery.

I like the Holley in take units with built in sender but they deliver around 58 psi with no return. I believe their reg and return would be in the tank.

So for the return, I am thinking of installing a good quality EFI to Carb regulator and route the return to one of the stock Cuda tanks that has either one or four vent returns.

Something like this one. Is their a better way to skin that cat?

Or, stick with the old school flat tappet and mechanical fuel pump and make sure I always run the appropriate oil for flat tappets (which is what I do in my 71 Chevelle)

Aeromotive 13220 Aeromotive EFI To Carb Conversion Fuel Pressure Regulators | Summit Racing

 

[Xcudame]

I vote for the 360 roller motor since neither of your engines is original. And I like your plan. It should work fine. Mopar went to the Magnum engines with roller cams for a reason, they're better!

 

[Inman789]

Thanks. You dont think the large volume returning through a vent line would be an issue? If I had a tank with the four vents, I could split the return line to two of them.....I agree that the roller upgrade would be worth the gamble. Thanks

 

[pschlosser]

is a return fuel line from the motor to the tank really necessary? this is kind of a pain to install and not every fuel delivery setup requires one. that said, the tanks with only one vent repurposed as a return line may create new issues with fuel delivery. if you're set on using a vent line, I vote going with an ECS tank with four vents. but even the OEM had the option of a pickup with return line fitting.