MustangWorks.com : Ford Forums - View Single Post

esandes · 10-06-2002, 10:43 PM

I doubt you'll have a problem. I have FRPP heads and shortys. The 99+ head swap will bump up your CR but you shouldn't need premium gas unless you bump the timing.

10-06-2002, 10:43 PM	#2
esandes Registered Member Join Date: Mar 2002 Posts: 72	I doubt you'll have a problem. I have FRPP heads and shortys. The 99+ head swap will bump up your CR but you shouldn't need premium gas unless you bump the timing. __________________ SSS 98 GT w/ lots of bolt-ons