More horses for my pony

[Dave68]

I would like to get more hp out of my 68 289. I replaced my stock 2bl with a new Edelbrock 600 4bl but it didn't make that much difference. Next I am going to replace the stock exhaust with dual 3 chamber Flowmasters but I was told that would only give me another 10 to 15 hp. I have a set of old headers but my Dad's friends told me that they regretted putting theirs on and are going back to stock so I guess I won't do that. I have a very limited budget especially after the stuff I mentioned. My 3 speed auto tranny goes through the 1st 2 gears in no time then it gets bogged down and I'm not talking about racing just a little goosing. Oh yeah, I put in a 355 rear end also. Any ideas?

Dave