seanyb505
NAXJA Forum User
- Location
- Simpsonville, SC
With a .030" overbore, .010 off the head, and the new gasket, would I have to bump up to 93? I use 87 now, but the few times I've felt baller and filled up with 93, it did get about 20 more miles to the tank.
I use 87 in mine and get better mileage than higher grades. You'll be tightening your quench which will give you a slightly better burn.