c10stuntin
06-13-2010, 09:30 PM
IM running an 84 200 and when i bought the motor it was just rebuilt i broke it in but never thouht to find out anything about timing. Its running like 135 compression give or take a few on each now and i wanted to pump up the tming a little if possible any thoughts on what it should be running at where i can beat on it but not burn it up??