Originally Posted by 2kSi
what specifically would u do differently for a 75 vs a 55? i would like to run a small shot but be able to run a bit larger shot for maybe a 1/4 run with her car...
thanks!
Eric
55 id just run colder plugs...
75 id run colder plugs and definately retard the timing... maybe even two step colder
and id definately run at least 93 octane for both.. i personaly run 94...