Going to build my tired L98 looking for suggestions on pistons,
cam,and heads. The car is a 87 Ta 700r tranny, with 3.27
rear disc posi. This car will be driven everyday. Want to stay with
factory tpi (with as many mods as possible) looking for all out
terrifiying power. anyone have any ideas

 

Ported/polished Corvette L-98 heads or some 180cc runner AFRs if ya got the dough, a LPE 74211 Cam, ported plenum, aftermarket runners and intake manifold, stroker crank, 9.5:1 pistons, 1.6 full roller rockers, and a custom chip.

If you go with the LPE cam and a 3.75" stroke crank, you'll probably need some H-beam rods to clear the cam. I did.

That combo should get you a mountain of mid-range torque.
High RPM (>5500 RPM) power isn't going to happen with a long tube runner (LTR) set-up.
If your willing to compromise on the LTR part, a superram will breath pretty well up to 6500 RPM and doesn't loose much mid-range torque compared to the long runner set-up. The Superram is also emissions approved if it matters to ya.

If your still not happy, another $3500 will get you a Paxton supercharger. That should qualify as "terrifying"!

 

Just spend your money on a supercharger and you will be really happy!