Re: 306 or 347?
No replacement for displacement. Speed costs money. How fast you want to go depends on how deep your pockets are period!!! No way around that. As far as E.T. and horsepower is concerned, its about overall combination. Like Jester recommended, go with that combination. Or go with some other one that works. Best way to find out, the race track. You have to educate yourself for whats best for you. But cubic inches cant be replaced. Sure, someone can put a blower, nitrous or turbo on a smaller cubic inch motor and make as much or more power, but cubic inches will have more potential for power! And cubic inches cost money.
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1983 mustang, 393 cubic inch stroker small block, victor jr heads and intake, gold race 1.6 roller rockers. comp cam 304, 244@ .050. .576" hydralic retro roller cam,lunati rods. block was o-ringed,10:1 forged pistons, speed pro fit fit rings, clevite bearings,msd distributor and igniton,be cool huge radiator, black lite electric fan, march underdrive pulleys, mildon deep sump oil pan, mac 1 3.4" long tube headers, 3" dr gas x-pipe and mac exhaust,ARP bolts. car weighs 2900 lbs w/out driver, sub frames, weld wheels, mickey thompson sportsman pro 26 x 10.5 x 15's,#8 fuel line steel braided
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