[69 Mach I]

I know that speed is just a question of money. I am over budget already and still have to put in a new interior and repaint. Stroking will cost me more than I want to go because I just put new rods and pistons in there at a materials cost of $1000. I would have to toss that investment if I were to stroke. If I put a hair dryer on, I still have to toss the $620 I spent on the pistons becasue the CR is too high to blow. And to top it all off, I am in Europe where things cost 2x what they cost in the US. So I am looking to see if I cannot squeeze 50 hp out of my application in some other way that complements my existing componentry. Bigger carb? Port the heads? EFI? Something else?