050 on the intake side) and will belt out low-midrange torque like nobody's business. 050 would actually be pretty big compared to the stock cam (which is 191*. An old school single pattern cam of mild duration, or a cam with only a mild split between intake and exhaust druation will actually work quite well for that reason. What I'm saying is that the swirlie heads actually have an excellent Intake/Exhaust flow ratio- around 75% or higher, even though the overall flow potential is not very high. First off, the TBI heads have a pretty bad intake port (swirl port) but a fairly decent exhaust port (ever bit the equal of Vortec heads, much better than non-swirl-port heads of the same vintage). If you have to go flat tappet, I'd make a few suggestions. You can even use the stock springs with them up to about 5000 RPMs.
If you can go roller with the block, definitely consider a used LT1 roller cam.
