I need help. my car loses power and when i give it gas it doesnt want to move and shuts down even while on the highway go 80mph. and ill have to start it again and it goes again. it also happened to me driving it locally with the same problems. it happened out of no where after having done mods 3-4 weeks ago. I did cams, valvetrain, ctr pistons, milled head, port and polish, msd ignition, spoon headgasket. Like i said it was driving ok until one day driving up to school it shut down on da highway. Now the car starts like it doesnt want to start but after holding the starter down a while. and if i dont turn off my radio before i turn off the car my settings are erased. and all these problems happened after driving my car up to school. some please help.

 

I'd suggest you remove the MSD ignition from your setup and see if the problem disapears. If so then you've got a problem with it.

 

You think its the MSD, eventhough i had it on for 3-4weeks prior to this happening?

 

Seems more likely ignition related than any of the other changes you made. I'd start looking for the problem there.