300hp to the wheels 318

Is it about 10:1 compression with those heads and pistons? And how much $$$ have you dumped into it...?:)

Should be right at 9:1, as is. Previously sold this engine for $300 and the guy filled the crankcase with water after an improper intake install... got it back for Free and put a set of $375 pistons in it, then bearings/seals; stole the cam/lifters and top end from my Cuda’s 340 as well as my Super Bee’s old carb.... So honestly, not much since I started $300 in the green... However “result$” may have varied had I started from scratch... I did have to pay for fancy pushrods in a pinch.