What is the highest octane that you can safely run in a raptor 660 with stock carbs

 

Octane isn't going to hurt a raptor...its only gonna slow it down.

 

?

 

Dont go over 100 R+M/2.

 

R+M/2?

 

lets keep this simple.....is running 92 octane gas good or bad, or 87 or 90 etc. [img]i/expressions/face-icon-small-disgusted.gif[/img]

 

Well for a car the higher the octane (92) the better it performs

 

bump

 

stock raptors ( COmpression) take 87 octane. anything higher on stock compression SLOWS YOU DOWN. with a 10.75:1 - 11:11 you need to run 91 or 93 (Premium) 12:1 you need 50/50 race gas. with 13:1+ you need straight race gas.

 

how does higher octane slow you down???