New Domed Lifterts

I broke the one at the top taking it out bot were intake lifters think I was losing any horsepower :dunno:
http://www.pittspeed.com/uploaded/DSC03410.JPG

what are those antiques? get some with rollers

I need an 87 or newer block don’t I ? Because I really don’t feel like spending 400 dollars for retro fit roller lifters.