Finally the decision has been made.
Yea I know it was ment for the 318 but that when south. It will work until I can afford something better! What carb would you recommend?
What converter would you recommend? I the car will be full weight probably 3400 with me in it. And 2.76 gears for now until the 71/4 gives up the ghost.
With the 2.76 I would normally say you have, HAVE, to to get a convertor if you are swapping cams.
But I know that 268/276 cam in a high-compression 360; it pulls pretty hard from nearly right off idle. And it will pull the stock stall up an easy 100 rpm.
However, the 2.76s are gonna keep the engine rpm down a long ways, so if it doesn't break the tires loose right on the start-line, then the engine is gonna be stuck having to work really hard all the way to 30mph/2650rpm and beyond.
Now, if the engine is gonna be a low-compression deal, this is gonna be further compounded by the soft take-off.
With the 2.76s in the back,and in 2.45 first gear,and the stock 1850TC,I don't think it will break traction, so any small carb will do, including a big 2bbl, up to about 3500rpm/40mph.
So, on your budget,my thought is this; It's gonna be a lo-C deal, and it's gonna be stuck with the 2.76s. So then I would rather have the big-TC NOW and a 2bbl, than the stock teener TC and a 4bbl; because now with the new TC it will break traction from a standstill. Now you can put some decent rubber back there, and it will be vastly more fun on the street; at least to 30mph, and probably to 40.
BTW, 2.76s are good to 65ish mph with that cam. The power will begin to build at 40 be going strong at 45, peak at 55ish, and shift at 60 to 65. The 2bbl will slow it down up there some, so you might want to shortshift it.
So if you don't already have a performance intake, but do have the 1850, then bolt on anything.
Here's the deal; say 60mph was the upper cut-off, and the 2bbl quits pulling hard at 40. That means 40/60 =67% of the powerband is working for you. If you only spend 10% of the time over 40mph at WOT, then 90% of the time the 2bbl is adequate.
But 100% of the time, the bigger TC is making it fun from standstill to 30/35mph. Without the bigger TC 100% of the time below 20mph is gonna be a PITA to get thru, and 20 to 30mph is gonna be sluggish as well.
Those are my thoughts.____________________
Now, here is my experience;
I once (1975) ran a 340 like this in a 65 Valiant wagon, yes with a 2bbl and even with a teener 2bbl cam.That was a lotta,lotta fun. The 904 puked in the second summer. The by now 11 year old 7.25, which I peg-legged the crap out of, kept on going.
I gave that car to my little brother who took the 340 out for me and installed a 225 that I gave him, and then he ran it for a few more years.
