A quick question I ride a Gordons Well and have a new ported and polished 398 big bore kit to put on with a pro design cool head and want to know before i puit it on if anyone knows what my compression will be if i put the 19cc domes on if i can still run pump gas. The port job is a mild drag port with tripple exhaust ports. The reason i ask is because i have a stock crank and dont have the money right now to put in a welded crank. Thanks for the help