Data files for my 1993 roadmaster 5.7 tpi

[Jim_Rockford]

thats funny cause Im running 5-6 gallons of E85 in addition to 87 e10 in a 22 gallon tank at fill ups. think that is causing the O2 to think its lean and trying to fatten it up?
On that note , I used some in my 92 Camaro B4C from time to time and this is what the intake valves looked like when I pulled the engine yesterday

Not bad for 199k