[Old Guy with 87 GT]

i've had many discussions about the same subject ,....your correct about the compression ,the p heads have like a 58cc chamber stock

i haven't gone with them cause of budget reasons ,....this is how i see it .....i can take a set of e7ets (25$ each)....put good seals in em(60)do a valve job on em(50$) ,mill em,(50$) port em (free)and and put good springs in em(110).....then they'll run pretty good (320$)

where as if i buy the p heads new ,then do work to em i'd be within 500-600$- range,then i'd have to buy headers 175$ ........(700-800$).......they'll run better then e7s but it would seem that the margin is to small to justifie the expence ......most of the cars i've seen run p heads aren't going that much faster with a mild combo like mine ........it be more economicle to spend a few humdred more and get a set of afrs..........witch at this piont in time i can't afford either

btw ,what are you doing with your old e7s?