The Ford Barn - View Single Post

old31 · 01-28-2021, 11:34 AM

65, assuming you have the standard 4.1 head and you are around sea level you are ok.

4.1*14.7=60.27 PSI.

Put in 4oz of MMO per 10 gal of fuel. Drive it, and see how she is.

01-28-2021, 11:34 AM	#4
old31 Senior Member Join Date: Jan 2016 Posts: 2,098	Re: compression 65, assuming you have the standard 4.1 head and you are around sea level you are ok. 4.1*14.7=60.27 PSI. Put in 4oz of MMO per 10 gal of fuel. Drive it, and see how she is.