Theres alot of people who are building/plotting out 318s. Even me. You can pump out a good 500+ horses with the 318. But as they say speed is money. around 6$k+ Should put you in the range of decent horsepower around 450 and a complete car with everything you need if you truly do a budget build and recycle EVERYTHING you can. Go out and grab an 8 1/4 out from under a 73+ A-body, just remember to check out the guts and the fluid and all that. Hopefully someone much better than me will chime in