Many owners/racers have use the Torco additive locally for years with very good results, and I have used it in street/strip cars have been very satisified with improved results. Many of the cars are equipped with good data recording provisions, so we are able obtain good numbers, not just a "seat-of-the-pants" feel!
We have done dyno sessions where Torco additive has shown to work excellent in raising octane on pump gas, however we are always careful not to exceed the published limits of this octane booster.
I would not trust it to make 116 octane out of pump gas, but we have seen it giving results up to 110 octane race gas from pump gas.
Since higher octane gas burns slower, it is logical too much octane will affect spool-up when over done, and we have experienced this as well.
I personally have used a quart of Torco in a tank of pump gas in many TR's, including one of my street TR's, and never seen any issue with loss of power or performance.
Since you have hot, humid conditions, that could be a reason for your reduced performance, or maybe some old 94 octane that has deteriorated? Summer blend gas is crap here, I would guess in Canada they also change to summer blend gas.
Anyway, you have my ideas!
