340 compression test

How did you make out on this ? I am having the same issue with my 372 stroker. It is a "toned down" high compression engine that I have to run racing fuel in on the street. I want to make it more streetable, but had @220lbs on comp test so not sure what way to go with it. It's a 30 over 340 w/ domed pistons, 3.58 stroke, has 549 lift cam, 70 cc open heads and 90 head gaskets. I have to back the timing way off to make it run at all on the street and the fuel costs are killing me! Any help would be great. Feel free to PM if you have ideas! Thanks
Have you thought about running E85 has much higher octane than pump gas and alot cheaper tha race fuel.