[classicauto]

well, if by housings you mean just hte housings themselves and not the irons, the nsure, you'll make more power on the TII housings given that they don't have the divider/diffuser in the exhaust ports (the diffuser can be removed from the N/A housing BTW....)

Using the TII housings and irons you'll still end up with nearly the same peak horsepower as demonstrated by a few different cars in the past, Karhen's mostly. Either way, either N/A setup is going to come in under 200whp in most cases. Logan from defined autoworks cranked out a little over 200whp after alot of tweaking, but still to assume less than or in/around 200whp is reasonable.

Only way to really push much beyond that is with some more radical porting, or the addition of extra oxygen to the chamber (N20 or boost). It just seems to be the limitation of the volume of combustion....even look at renesis engines. Stock Mazda claimed "240bhp" but testing proved that to be inflated. IIRC the highest renesis dyno I've seen is a little over 200whp..........still within a mere few ponies of the setups discussed earlier.

Having full control over the engine is great, but still won't be enough to overcome the physics of the amount of air and fuel requried for number much beyond 200 without (as mentioned) bridge/p poritng or nitrous/turbo

EDIT: You won't need the TII transmission unless you use the TII flywheel. You'll need to make a choice on that one as if you decide to use the TII flywheel.trans you'll either need the adapter (TII Trans ---> N/A diff) driveshaft from Mazdatrix or the rest of the TII drivetrain.