Noooo - use the plasticote primer first. And Nitromors does a fantastic job of cleaning off the old stuff back to bare metal.
Back in 2001 when I didn't know much about anything, I just walked into Halfrauds and bought some paint that looked like it'd do the job.... and that paint job still looked pretty good with Chris barrie driving it this year
It's a really good quality paint, really easy to use (satin black BTW) the only bugger is if a fly lands on it while you're in the middle of it! You can't flat back a satin finish otherwise it goes gloss.