Non technical moral dilemma

[Chevy nutcase]

Does anyone ever second guess a decision to swap out perfectly good parts or components for ones that are merely updated, stronger or cosmetic? Let me explain. About a year ago I bought my 66 c10 dream truck after 3 years of searching. It was 100% fine the day I brought it home but I couldn't leave it that way. I had to make it mine. Lowered it, upgraded to power 5 lug brakes, new tires and wheels, cleaned and painted the motor which now has a new HEI. I enjoy driving it around and the 250 runs very good which starts so easy I can lean in the window, give a bit of choke and it takes off. The accompanying sm420 also seems fine even tho it's geared super low so it's basically a 3 speed. As ok as it is to drive I think I could be having more fun lol. My evil brain that's very liberal with my bank account is telling me I have to get a v8 in there and possibly an m22 as well. I'm aware of the cost and that's part of why I'm torn removing a good 6. As a teen I never hesitated. Nowadays I try to preserve history while not spending billions.

Maybe this thread will get relocated or tossed but it would be lovely to hear opinions either way