Mike, I got a 180M out of my stocker before I swapped it was still pulling 13.20's so 110M isn't really a whole lot. If you have the knowledge or have the help to assemble the block yourself then keep the stock block and have it machined and do everything yourself. OR get the 331 as as a short block or long block with some aluminum heads, I wouldn't put the stockers back on top of the 331 if you don't have too, but if you want to learn about porting go to the Standard Abrasives web site they have a good how to artice it is called DIY-Do It Yourself.
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My Ride Check Out My Site 91GT, Holley SysteMAX II Kit-Heads 2.02" x 1.60",Full MAC exhaust 1-5/8" Long tubes, 2-1/2" O.R H-Pipe, 2 1/2" cat back, 12" K&N Filter, RNH PERFORMANCE Ram Air, Ron Davis Radiator, Full Suspension,3:73's, Welds, Best on new motor-12.60 @ 108, no traction 1.98