Originally Posted by
rangcrx
To get a beter compression i would go with higher cams don't mill the head,if his got itr cams he should be around 245psi that's the exact same setup i change to after i had my dyno run b4. Had buddyclub 4s and was at 265.
changing cams will not change the compression ratio. you may get higher cylinder pressures due to cams having different overlaps but it will not increase your physical compression ratio, there is a difference. the only way to increase compression ratio is to decrease combustion chamber volume. putting bigger cams in a motor that doesn't have a high enough compression ratio is the exact opposite of what you need to do.