Start and step

[aussiewannabee69]

My car has a msd6a ignition with a start and step control box on there.
Do i need it?
I only drive it on the street?
From what i read its for street/strip?
Can i just the msd6a ignition, or is the start and step an upgrade?

 

[PurpleBeeper]

Interesting.... I'd never heard of a "start and step" before
http://documents.msdperformance.com/8987.pdf

On a street car you don't need it. It looks like the "start & step" has two timing retards. One is when the engine is starting & the second retard is activated by a 12V signal to a pink wire. If that part of it is hooked up, there should be some type of "trigger" switch in the car (nitrous, high-gear, etc.).....some type of non-factory switch hooked to it.

This would be useful for a car that needs a ton of initial timing to stay running....like a car with a huge cam.... and has its initial timing set at 30+ degrees and the mechanical advance locked out. The "start & step" could pull out some timing so you could even start the car & the "step" part might pull out a few degrees timing in high gear to improve top end OR pull some timing when the nitrous kicks in at the track.

 

[aussiewannabee69]

So im guessing the previous owner was running nitrous. Pink cable was long and tucked under the dash.
How do i tell if hes locked the distributor out?
Its doesnt have the vacuum advance on the side of it.