Originally Posted by nascarlatemod06
You guys think a 305 with a stock crank, stock rods, stock flat top or dished pistons, stock steel heads, stock hydraulic cam, stock rocker arm ratio, Holley 7448 and an Eldebrock 2101 could be modded enough to compete with a 350 with the same rules listed above ? If so what could be done?
first off I would upgrade the rocker arms for some roller rockers good for at least 10 to 20 horses maybe more. some port work on the heads and intake would be worth a few more but would be limted becasue of the stock cam. Are you running stock exhaust manifolds? if I could I would put on some long tube merged headers that will free up some horses as well. A ignition upgrade will be worth a few horses too, a msd 6a is a good choice for a stock to mildly modified motor. Tweak on the carb jetting and the timing curve to get few more. A K&N low restrictive cotton gauze air filter and K& N stubstack will straighten out air flow into the carb and is worth a few too.
Goodluck, Charles