here im told gasseer stuff is cheap.... to take my current ~360/525 fw hp/tq 468BBC (got about 2500-3000 when i did it) to ~500/600 i got to spend ~3000 between heads and a HR camshaft and related items.. and still maintain very good street manors and MPG and 87 pump gas... and thats with still OEM rods and crank, hyper piston.. i have a R/A capable of 800hp in the machine shop ~1500.00 plus ~1500.00 worth of machine to the virgin block and R/A (deck, bore, balance main)... for that money i can put a dmax get ~50% more fwhp (~650-700fwhp) out of it just by tuning... and 1.5-2x better mpg.... and still keep my 5000rpm redline!.....