I have a new ZZ383 with a 770 Street Avenger in my 68 that's very close to being started. I am wanting to use a mechanical fuel pump and would like to have a suggestion. I have read several threads but still can't really make up my mind. It's all a little confusing. Some say you need a bronze tip pump rod with your roller and some say you don't. I would just really like to know which it is. From what I been reading Carter seems like it would be a good choice maybe a little more dependable than Holley. Surely GM would make something suitable for this application too. I think it's supposed to run around 7 psi. Any comments would be deeply appreciated.