No Looking at the specs on the engine it should make close to 700. Your Edelbrock and speedmaster stuff runs great, makes great power but the OP is asking for more hp than those heads are capable of.
He’s down to 650 horsepower now and I think that’s doable. Remember my heads are over 10 years old and an old open chamber set of heads. Not one fancy part in my engine and my next set of heads will be much better. At .650 lift that has room to grow too. Over 600 horsepower on a budget is a cakewalk with a small block in todays world with 30 year old technology. Just like 750-800 horsepower with a big block is. Our factory blocks if used are our limits. Like we said earlier W8 or W9 heads mildly done up but his target easily.
