Brake & fuel lines

[jacmac]

My 69 L-35 Camaro has a 1/4 return & 3/8 OD fuel lines,they are original.I thought only the L-78 engine got a single 3/8 OD line & my car should have  5/16 OD & 1/4 OD ?? I have a 69 chevelle "being restored" that has the same lines. They are one continuous line, tank to fuel pump.I would like to set a junction block " no rubber hose" somewhere along the frame.does anyone make one? I also want to Eliminate the dist. block "brake lines front disc rear drum" on the frame rail & use a combo valve just below the master cylinder.Can that be done?? I want to set a junction block for the brake line too, as it is also  one continuous line.
Thanks for any help!~

[z28z11]

My Pace Car has 3/8 x 1/4 lines. L78 and the X77 both have single 3/8's, as does the '68 Z as it should.

Quadrajet and Holleys probably were the deciding factors -

Regards,
Steve

[jacmac]

Thanks

[ko-lek-tor]

1969=all v8 cars have 3/8" fuel line whether it is a 2bbl.  Q-jet, or Holley. From 307 to 427
All 6 cylinders have 5/16"