alloy head 4.1 mods
At some stage soon I intend to start on my new project car (xe faclon). I wont bore you with body mods but I will ask about engine.
I will use it as a daily driver. I will use a carby 4.1 alloy head six. I just want a simple car with no efi worries (e.g. chip upgrades, airflow meters, injectors etc etc.), reasonable economy (hence a six over and a v8) and some extra performance. The car will be manual.
Shave head, Polish ports, extractors with 2.25/2.5 exhaust, small cam (around 25/65???) standard webber (maybe re-jetted). Will this give me a noticeable boost (e.g. 130kw over the 100kw standard)? What cam should I use??
Shave head, port head, polish ports, standard size valves with roller rockers, redline manifold (or match port the original), extractors, exhaust upgrade, mild cam. (will double valve springs be enough? Or do I need the roller rockers)
as per idea two but add lightened flywheel, thermo fan and possible holley 350. (will these mods make that much difference???)
C.O.M.E st2 cylinder head and cam, with sports manifold, exhaust extractors etc.
As you can see the, each idea is a step up in cost (and performance). But what mods will give me the best bang for my buck?? Obviously if I spend 5000k on the engine it will go great but I am not rich so I'd like to add some go. Will idea 1 yeild results? Are the standard ports big enough? Is it worth spending $$ on thermos and flywheels?
Ultimately idea 4 is the best idea but how much? I have sent away for a price list but to no avail. Any aussie falcon owners got comments?