I'm using a complete 01 5.3 truck motor in my 67 Camaro and wanted to see which adapters fit the stock fuel rails. Wondering if they are 3/8 and 5/16 setup. Im going to run AN lines and fitting from tank to the stock fuel rails. Thanks in advance.

 

Return style fuel rails are 3/8 on the supply and 5/16 on the return iirc

 

^^agree

 

Sweet, thats what I just purchased lol. Cant wait to see how this little 5.3 takes boost. KB is building a badass kit for it.