i am wanting to raise my compression as much as i can and still run pump gas. 93-94 octane usually available but rather shoot for 91 just to be safe. i have the 9:1 propane pistons and am zero decking the block so should be near 9.4: before touching the head. .020 off the head puts me around 9 3/4:1. should i settle for that, push it up tp 10:1 or back off a little to be safe? i have zero concern on cost of premium fuel nor mileage, just want to be able to fill up anywhere without worrying about finding race gas.
