xm20k
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xm20k replied to the thread Needs MORE POWER!!! (Tim Taylor Style!!!).Casting numbers off of both block and heads google the numbers will give you specs like year of block 2 or 4 bolt etc. same with head... -
xm20k replied to the thread Carb backfire under load.Could be distributor module also check to see if the mechanical advance isn't sloppy and springs back and doesn't just flop around.
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xm20k replied to the thread Needs MORE POWER!!! (Tim Taylor Style!!!).In stock form a 400 made a whopping 150-265HP year and application dependent. With a bit of a cam probably a towing or RV cam all else...
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xm20k replied to the thread aftermarket heads.Summit sells Vortec heads capable of .525 lift and thread in studs complete. These require a vortec intake manifold. The older style...
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Hello all from Ohio Been lurking here over the last 2 years while building my 78 My Junk 388 fully forged stroker Comp 252 .600 110...
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