Originally posted by lt1s10
Dennis if im reading this right you are looking to increase your response time. you have 4 degrees base timing and when you crank the motor you are idling with about 15 degrees total timing (i don't know what that is, im just using 15 degrees) so you have about 15 degrees timing when you accelerate, then the timing falls off. so you go to ported vac. and increase your timing to 10 degree base timing and when you start the motor, then you still have 10 degrees of timing, as far as im concern you just lost 5 degrees of timing which will hurt your response time. if response is what you're looking for.
I will agree with that S-10