|
I agree with 95 GTS. keep it at 5.
In general the 4.6 can handle 20-24 degress advance, but internal mods, along with fuel and great exhaust scavageing is needed to see any real power gains. also, if you did nothing to really raise your compression and going by your list you did not, keep at 89 octane and run the race fuel on race day. the higher octane keeps from pre detonating your fuel when your on the power stroke, thats it. high compression motors and or forced air need it due to intake heat. hence the intercooler. (for the basics) if you are needing help with a tune, use a scan tool or a data logger. what ever you do, don't guess.
|