I currently run a set of indy 325-1 on my 540. With 11-1 comp and a blower cam running na the motor made 720 hp. Car is 3100lbs ran 9.47 @142 at Lebanon valley. The heads were brand new but still needed new guides and a good valve job.
I've only seen a few sets of Indy heads come thru the shop and they all needed guides and/or valve jobs. Indy has some expensive CNC equipment for porting but they either have really old equipment for valve jobs, or they don't know how to use the equipment. Never figured out how a shop had enough smarts to program and run CNC equipment but didn't know how to do a valve job. Just one of the mysteries of life I guess. Maybe the new owner will fix that issue.
