Help me decide!
Elelbrock performer 4bbl intake and skip the used cams, if you like the 340 cam specs, which has a good report from others here for performing well, I'd get the updated version from MP.
on the one hand you say "no need to go larger then 600cfm" then on the other you recomend goin with a 800cfm tq??? hmmmmm.
Because the T-Q has tiniy primarys , it operates with very good throttle response. When the secondarys are called apon, the air door, being spring loaded opens as much as needed. Even if it opens all the way, later it cloes up since the engines needs die off.
A properly set up T-Q is serious, actually, a hard carb to beat.
Idles and drives around on primarys of approx. 200 cfm and has the abilty to open up to 800/850 cfm IF needed. And that is what the spring loaded door is all about.
The 600 cfm carb is just fine. And while it is even possible to tune in a larger 750, 800, 850 carb, it has a low end throttle response that slowly degrades as you get larger in size.
It is entirely possible to put a 850 ontop a bone stock 318 and drive it everywhere.
I'd rather shy away from the Iron T-Q intake for most street 318 engines. Again, it is entirely possible to use it and use it well.
The OE ignition system is just fine. An orange box is better, I prefur the Chrome box for anything I do.