Exactly how I did mine. Used the original tank by dropping it down and installing the retrofit pump. Went without the return line. It’s been working great. And getting back to the original question or whether or not to Efi, I would say do it without hesitation it is definitely worth it!
Was able to retrofit the Holley 65-70 in-tank pump. I was told mounting an exterior pump would be louder than the in-tank pump……and the in-tank pump is loud enough! But I’ll live with that for the benefit (for me personally) EFi has given me.
Installed the Holley Sniper on my 73 convertible Q code this spring. My car was always hard to start cold (compared to my 68 289), and if I didn’t drive her for any length of time, she would also have stumbling issues off idle. I know these are all things that can be fixed, but sometimes I just...