Well since everyone is throwing in about every possible high$$ combos here.I'll chap some butts and throw in a budget buildup!
1st is to get a stage block(preferably a STGII off-center) price will average $2000 for the block.
2nd find a low mileage 84-87 production block.(I know of 4 complete blocks that have 40000 or less miles)
Take the internals out and have em magged,if good then get a set of TRW or JE pistons(JEs will require a rebalance of rotating assembly)I would recommend using a standard crank not a cut one.recondition the rods,then assemble the short block.
Get a set of ported GN1s port a stock 86-87 intake,hell even a set of reconditioned stock headers will take you to low 10.s
with an offcenter STG2 you dont need Dutweilers oiling system or a high $$ pan a stock 84-85 14 bolt pan will work fine.you can easily fab your own pick up by cutting a stock pick up then welding it to a pre bent pipe thats attached to the provision at the inside front of the block.(VERY EASY)
A Flat tappet cam will work just fine,55#-65# injectors will be needed along with a double pumper or equivalent.and a set of motor mounts from Paul Ferry.the stock balancer and flexplate will work to.but would only cost less than $600 to step up to SFI approved ones.Turbo would be in the TE45-T66 depending on the weight of the car.
Now before anyone gets bent,consider all the guys that have run low 10s and even 9.9s on the stock block,crank and rods.9 times out of 10 what usually failed 1st? The Block! not the rods or crank,and if the crank usually failed it was usually due to excessive cap walk. I think a well prepared STG2 off-center using stock internals - the pistons would be reliable to 660-700HP in a lighter TR if kept under 5500 rpms as well,They have proven to be many times before.even a girdled stock block will have cylinder wall failure before the crank and rods fail.
The final cost would be around $8000,if you already had a good donor production motor. this would get you low 10s.
most of you guys that have the high $$ equipment in and on your stage blocks run much faster than low 10s and produce 800,900,1000+HP where these parts are mandatory and give you plenty of room to grow and of course PIECE OF MIND!
This reply was just to add something to the list and maybe some debate.