well this was the breakthrough..... i nailed it my slicks smoked for 20 feet i took it up to 5, hit 2nd ,tires broke loose again and then i stoped.. i then went back and hooked my vaccum advance up and tried the same thing well it just craped right out... so i disconnected it and pluged the vaccume port off and set my timing back to the way it was and drove home before the cops came..

basicly my question is what did i do?

did i advance the timing and that made that huge of a differnece?

why did it run better at higher rpms but ideal bad when i adjusted it? (can i compinsate for this)??

why did my vaccume advance mess everything up like it did?

what exactly does the vaccume advance do?

do i need to run the vaccume advance (the p.o. never did)

I think i have untaped power hiding in that circular thing with the black wires in the front of my engine.. and i would like to harness that power

I know i have posted several times on tuning my engine but i feel its not something you get told once and your a pro at.. i also am worried ill do something wrong and break something..

please enlighten me on this.....

thanks

-gbm-

Welcome to M&M, as far as your question I think you've found the timing that your engine likes! Vacumm advance is for daily driven street cars. What car do you have?

its a 70 coupe
351w (lots of goddies) (torker2 intake, gt 40 heads, headers, roller rockers, solid lift cam, etcc etc.)
3000 stall c6
4:11 spooled 9 inch

bassicly a straight line runner

Throw away that vac advance hose and time it at 38 degrees total! Your stang will thank you in the morning!