Thread: 400 engine combo what will it do?

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wow!! didnt expect such an indepth response many thanks for that.i think the engine was origonally built with circuit racing in mind,but i innocently saw big hp numbers and torque and was told it was configured to pull well out of the bends so would be good for my street use.
i wanted to come up with the most streetable solution for as litlle extra outlay as possible,having just bought it.
i found the camp coms calculator and it says if i put in a 12-404-4 cam then ill get 425 hp at 5500 and 473 lbs at 4500 that would suit me fine although i would rarely use 5500 rpm the torque would get me moving fine.
Im not sure how accurate this all is!
the heads i have are the afr aly heads with 210 cc and 65 cc chambers.
the bottom end is freshened but standard pistons and crank and standard bore
im not able to calc compression i just guessed it would be up slightly on standard as the heads have smaller chambers the engine is a 2 bolt mid seventies,i think the origonal heads may have been 79cc.
it has the cam you thought it might be with the solid lifters the intake is the edelbrock rpm air gap and the carb is an edelbrock 750
dont know much more about it.
i spotted some little collars to insert to change the timing of the cam by up to 8degrees to move the operating range is this an option ?
once again many thanks
i lookm forward to hearing your response.