While since i plan on getting a bigger cam I misght as while change up the valves.
Since this thread was turned into a science project I'll fill in for you. lol!
With the lump ports and a stock head it was noticed that the engine ran smoother. Mainly because there's smoother air flow now.
Add a cam and you get a 30 hp increase.
Now, Add flat top pistons, a good cam let's say around .499 lift, 1.86 intake valves and 1.60 exhaust valves, 4 barrel and headers, and you'd be looking at over 100 hp over stock. Tom Lowe has some neat 250 builds that haul.
