Mystery Cam

It's a Poly cam, that's what the "277" means (Plymouth baby sister to the 318A). I had a NOS one and sold it to a guy with a '64 Poly and he loved it!! Sent me a video with sound and it loped pretty good, and he said it needs a tad more stall, like maybe a factory 11" hi-stall truck converter with the earlier input splines. Won't work in a LA motor, due to lobe sequence. The cam card above^ shows the same lift and duration specs but a different lobe separation than the one I sold. My timing events were 35-71,71-35 and part number 150188, grind #D-888.