Rick,no disrespect anywhere.(lol!). My comparision,300 horse /350 Chev. Installing ,the 151 350/327 grind,doesn't respond. Of course,bowl port the heads. That is close to,240 @ .500.Same as ,1.92 EQ's.Ran the equivelent,of the old 360/350 grind(58 overlap,on a 114). 21 inches of vacuum ,on a hydraulic roller. Sent in for a regrind.Silly info,for you ,on a stockie Magnum block.Hope this helps.