Best fuel for Stock

[FireSale]

Originally Posted by Alan Nyhus

How did you determine this? -Al

Honestly just my opinion. He is running either a 302 or 351C in a heavy stocker. Race gas is expensive.

[Billy Nees]

Originally Posted by FireSale

Race gas is expensive.

How does that matter?! If you want to play this game it's kinda/sorta a necessity, isn't it?

[Dan Fahey]

Originally Posted by Billy Nees

How does that matter?! If you want to play this game it's kinda/sorta a necessity, isn't it?

Experimented all last year.
Used pump Sonoco high test, VP and Sonoco blends.
Mostly Sunoco because that was what was most available.
Lots of documenting. My engine is an LT1 iron head.
I have O2 sensors and tune with factory pcm..

The best difference was 3 hundredths of a second.
That was a oxygen rich day using Sunoco 110
All were same on muggy hot days.

Prefer the Unleaded Sunoco 260 GTX.
Seemed to do a little better than pump Sunoco.
Since it was 100% gasoline. Then again minimal.

This year will stick with the pump Sunoco.

[Sam The Butcher]

ERC!!!!

[Alan Nyhus]

Originally Posted by FireSale

Honestly just my opinion. He is running either a 302 or 351C in a heavy stocker. Race gas is expensive.

You simply have to test to know for sure. These were four that we tested in a recent dyno session with my 327-275. -Al.