[Gopherboy6956]

Hey Guys,

I'm currently in the middle of my 2nd engine tear down, and this time i'm rebuilding with forged internals. I'm boosted with Vortech, and looking to stay with either the stock 3.48" pulley or go down to the 3.25" pulley (9psi or 11psi max)

Anyways, I plan on running E85 for all performance related endeavors, and possibly stay with 91 in town. I DO have the option of running E85 all the time, as it's pretty available in here in Fargo, ND.

The question is - what compression ratio should I get for this build? My initial thought was 10:1, but since talking a lot of people recommend staying with 12.5:1 since I'll be running E85 most of the time.

The Argument for NOT going to 10:1 seems to be that because it's S/C'd, and I likely won't be pushing more than 11 or 12 PSI, i'll just be wasting useable power.

11:1 is also a option I feel, if I can get something in that size.

Lastly, has anyone tried lowering the CR a little with a thicker headgasket? Would you run into problems putting the timing cover back on?

Thanks!