I understand it would be more work and be a little complicated BUT it would actually cost more to do the fuel tank modification because I'd have to get a new fuel tank ($180 + shipping) and modify the outlet line size as well as pay for high octane all the time. I just need to know if there's anything wrong with how it'd work.
Why would there be more to swapping fuel grades? I could set the timing pretty far advanced when I'm on 87 but just not get into boost because that's where it'd knock. It won't knock on idle/cruise on 87. As for jetting, it won't be a huge deal if it runs a little lean or rich while at cruise or idle as long as it's not WAYYY off. When I want to get on it, I switch on the 93 pump and it'd suppress detonation for when I get into boost.
69 Buick Special Deluxe. Intercooled Turbo Chevy 250 @ 15psi on a stock long block. It's kinda fast.
