**Grenade Engine Autopsy on Boost and NOS**

And the huge ring gap. Have a friend that is running a 250 shot on a 73 400 in his road runner. Has stock cast pistons, stock rods, and crank. The bottom end has never been apart. Its been on the bottle for about 8 years and he goes through 10 - 12 bottles a summer.

True on the ring gap. Hard to know what it is when it's a used motor with 150k miles on it before it gets boosted and on the Juice.

Still amazing.

That 73 400 has about an 8.25-1 compression ratio?