Race Gas fuel additive.....

[Falcon67]

A gallon of VP110 at the track here is $9.50.  Mixed 1:4 with 91 pump fuel = 94.8 octane fuel.  I don't see the "race-gas" it as that cost effective, personally.  Plus you get the same effect from my experience - car is more consistent with 1~2 gallons in 5 of pump fuel. 

[e philpott]

I used to have a 93 inch dual plugged Shovel head Harley back in the early 90's that made 145 crankshaft horse power built by Brad Oehler ( Brads son is Flying Ryan Oehler on NHRA PS bike category) and I could not kick start it with race gas when cold as it just wouldn't start had to push start it until warm then I could kick it , put some 87 Octane and I could kick start it one kick every time cold hot didn't matter , the OP really shouldn't need race gas with his compression ratio and aluminum heads ,

[67428GT500]

I run 16 gallons at a time. It's a street car.  I was using 50/50. No opinion with over 11:1 on the street.  Even with the 9.8:1 I'm not sure I want to just run 93 pump.

[Falcon67]

I run straight 110 in both the 10.5:1 and thee 9.5:1 motor if at the track.  Has nothing to do with ET or MPH, has everything thing to do with dialing the same number as much as possible.  The 9.5 will run just fine around the streets with 91.  The 10.5:1 351C used to be OK on 93.  93 pretty much disappeared, but before it did there was evidence of slight detonation.  The 10.5 could run on 100 but the track only carries 110.  On a 2 day race weekend, yep I can run through $100 of fuel easy.

[427LX]

Just wanted to give the stuff a try and see what it would do! Might be it just makes the pump gas burn a bit better or maybe it
has an effect with how fuel atomizes in a carb setup.
Maybe do a test again with straight 93 pump gas and then with the gas additive and see if the A/F ratio changes using my meter.

[Stangman]

When did Sunoco 260 disappear and what was the octane